CVE-2023-33956 Vulnerability Analysis & Exploit Details

CVE-2023-33956
Vulnerability Scoring

4.3
/10
Medium Risk

The vulnerability CVE-2023-33956 could compromise system integrity but typically requires user interaction to be exploited.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2023-33956 Details

Status: Modified

Last updated: 🕗 21 Nov 2024, 08:06 UTC
Originally published on: 🕗 05 Jun 2023, 20:15 UTC

Time between publication and last update: 534 days

CVSS Release: version 3

CVSS3 Source

security-advisories@github.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVE-2023-33956 Vulnerability Summary

CVE-2023-33956: Kanboard is open source project management software that focuses on the Kanban methodology. Versions prior to 1.2.30 are subject to an Insecure direct object reference (IDOR) vulnerability present in the application's URL parameter. This vulnerability enables any user to read files uploaded by any other user, regardless of their privileges or restrictions. By Changing the file_id any user can render all the files where MimeType is image uploaded under **/files** directory regard less of uploaded by any user. This vulnerability poses a significant impact and severity to the application's security. By manipulating the URL parameter, an attacker can access sensitive files that should only be available to authorized users. This includes confidential documents or any other type of file stored within the application. The ability to read these files can lead to various detrimental consequences, such as unauthorized disclosure of sensitive information, privacy breaches, intellectual property theft, or exposure of trade secrets. Additionally, it could result in legal and regulatory implications, reputation damage, financial losses, and potential compromise of user trust. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Assessing the Risk of CVE-2023-33956

Access Complexity Graph

The exploitability of CVE-2023-33956 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2023-33956

CVE-2023-33956 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2023-33956, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2023-33956, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2023-33956 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: None
    CVE-2023-33956 poses no threat to data integrity.
  • Availability: None
    CVE-2023-33956 does not impact system availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.074% (probability of exploit)

EPSS Percentile: 35.56% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 64.44% of others.

CVE-2023-33956 References

External References

CWE Common Weakness Enumeration

CWE-639

Vulnerable Configurations

  • cpe:2.3:a:kanboard:kanboard:1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.7:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.7:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.8:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.8:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.9:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.9:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.10:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.10:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.11:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.11:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.12:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.12:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.13:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.13:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.14:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.14:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.15:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.15:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.16:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.16:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.17:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.17:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.18:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.18:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.19:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.19:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.20:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.20:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.21:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.21:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.22:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.22:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.23:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.23:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.24:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.24:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.25:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.25:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.26:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.26:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.27:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.27:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.28:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.28:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.29:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.29:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.30:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.30:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.31:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.31:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.31:beta0:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.31:beta0:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.31:beta1:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.31:beta1:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.32:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.32:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.32:beta0:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.32:beta0:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.32:beta1:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.32:beta1:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.33:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.33:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.34:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.34:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.35:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.35:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.36:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.36:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.37:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.37:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.38:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.38:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.39:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.39:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.40:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.40:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.41:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.41:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.42:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.42:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.43:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.43:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.44:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.44:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.45:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.45:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.46:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.46:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.47:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.47:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.0.48:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.0.48:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.4:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.5:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.6:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.6:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.7:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.7:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.8:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.8:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.9:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.9:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.10:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.10:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.11:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.11:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.12:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.12:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.13:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.13:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.14:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.14:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.15:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.15:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.16:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.16:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.17:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.17:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.18:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.18:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.19:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.19:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.20:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.20:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.21:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.21:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.22:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.22:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.23:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.23:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.24:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.24:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.25:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.25:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.26:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.26:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.27:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.27:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.28:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.28:*:*:*:*:*:*:*
  • cpe:2.3:a:kanboard:kanboard:1.2.29:*:*:*:*:*:*:*
    cpe:2.3:a:kanboard:kanboard:1.2.29:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2023-33956: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2025-3809 – The Debug Log Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the auto-refresh debug log in all versions up to, and i...
  • CVE-2025-2111 – The Insert Headers And Footers plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.1.1. This i...
  • CVE-2024-13926 – The WP-Syntax WordPress plugin through 1.2 does not properly handle input, allowing an attacker to create a post containing a large number of tags,...
  • CVE-2025-3103 – The CLEVER - HTML5 Radio Player With History - Shoutcast and Icecast - Elementor Widget Addon plugin for WordPress is vulnerable to arbitrary file ...
  • CVE-2025-3275 – The Themesflat Addons For Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the TF E Slider widget in all versions up...