CVE-2020-26031 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 29 Dec 2020, 14:29 UTC Published: 28 Dec 2020, 08:15 UTC

CVE-2020-26031
Vulnerability Scoring

4.3
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: NETWORK
  • Privileges Required: Low Impact
  • Scope: UNCHANGED
  • User Interaction: NONE

CIA Impact Definition

  • Confidentiality: Low Impact
  • Integrity:
  • Availability:

CVE-2020-26031 Vulnerability Summary

An issue was discovered in Zammad before 3.4.1. The global-search feature leaks Knowledge Base drafts to Knowledge Base readers (who are authenticated but have insufficient permissions).

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-26031. It helps visualize the difficulty level and privilege requirements needed to exploit this vulnerability, providing a quick assessment of its exploitation feasibility.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-26031, 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.

Impact Analysis

Below is the Impact Analysis for CVE-2020-26031, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Exploit Prediction Scoring System (EPSS)

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

EPSS Score: 0.054% (probability of exploit)

EPSS Percentile: 25.89% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 74.11% of others.

CVE-2020-26031 Detailed Information and External References

References

CWE

CWE-276

CAPEC

  • Accessing Functionality Not Properly Constrained by ACLs CAPEC-1 In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.
  • Directory Indexing CAPEC-127 An adversary crafts a request to a target that results in the target listing/indexing the content of a directory as output. One common method of triggering directory contents as output is to construct a request containing a path that terminates in a directory name rather than a file name since many applications are configured to provide a list of the directory's contents when such a request is received. An adversary can use this to explore the directory tree on a target as well as learn the names of files. This can often end up revealing test files, backup files, temporary files, hidden files, configuration files, user accounts, script contents, as well as naming conventions, all of which can be used by an attacker to mount additional attacks.
  • Web Server Logs Tampering CAPEC-81 Web Logs Tampering attacks involve an attacker injecting, deleting or otherwise tampering with the contents of web logs typically for the purposes of masking other malicious behavior. Additionally, writing malicious data to log files may target jobs, filters, reports, and other agents that process the logs in an asynchronous attack pattern. This pattern of attack is similar to "Log Injection-Tampering-Forging" except that in this case, the attack is targeting the logs of the web server and not the application.

Vulnerable Configurations

  • cpe:2.3:a:zammad:zammad:1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.1.4:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.1.4:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.5.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:1.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:1.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.5.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.7.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.7.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.7.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.7.2:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.7.2:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.8.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.8.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.8.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.8.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.9.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.9.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:2.10.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:2.10.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:3.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:3.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:3.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:3.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:3.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:3.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:3.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:3.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:3.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:3.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:3.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:3.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:3.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:3.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:3.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:3.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:zammad:zammad:3.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:zammad:zammad:3.4.0:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

Protect Your Infrastructure: 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 Recently Published CVEs

  • CVE-2025-25054 – Movable Type contains a reflected cross-site scripting vulnerability in the user information edit page. When Multi-Factor authentication plugin is ...
  • CVE-2025-24841 – Movable Type contains a stored cross-site scripting vulnerability in the HTML edit mode of MT Block Editor. It is exploitable when TinyMCE6 is used...
  • CVE-2025-22888 – Movable Type contains a stored cross-site scripting vulnerability in the custom block edit page of MT Block Editor. If exploited, an arbitrary scri...
  • CVE-2025-1065 – The Visualizer: Tables and Charts Manager for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Import D...
  • CVE-2024-13799 – The User Private Files – File Upload & Download Manager with Secure File Sharing plugin for WordPress is vulnerable to Stored Cross-Site Scripting ...
  • CVE-2024-12173 – The Master Slider WordPress plugin before 3.10.5 does not sanitise and escape some of its settings, which could allow high privilege users such as...
  • CVE-2025-1441 – The Royal Elementor Addons and Templates plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.7...
  • CVE-2025-22622 – Age Verification for your checkout page. Verify your customer's identity 1.20.0 was found to be vulnerable. The web application dynamically generat...
  • CVE-2024-13443 – The Easypromos Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Easypromos shortcode in all versions up to...
  • CVE-2024-11582 – The Subscribe2 – Form, Email Subscribers & Newsletters plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ip parameter in al...