CVE-2026-15518 Vulnerability Analysis & Exploit Details

CVE-2026-15518
Vulnerability Scoring

4.7
/10
Medium Risk

The vulnerability CVE-2026-15518 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: High
    High-level privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-15518 Details

Status: Received on 13 Jul 2026, 01:17 UTC

Published on: 13 Jul 2026, 01:17 UTC

CVSS Release: version 3

CVSS3 Source

cna@vuldb.com

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2026-15518 Vulnerability Summary

CVE-2026-15518: A vulnerability has been found in AREA 17 Twill CMS up to 3.6.0. The impacted element is the function FileLibraryController::storeFile of the file src/Http/Controllers/Admin/FileLibraryController.php of the component Media Library Insert Page. Such manipulation of the argument qqfilename leads to unrestricted upload. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Assessing the Risk of CVE-2026-15518

Access Complexity Graph

The exploitability of CVE-2026-15518 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-2026-15518

The exploitability of CVE-2026-15518 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

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-2026-15518, 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-2026-15518, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2026-15518 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2026-15518 may cause minor changes to data without severely impacting its accuracy.
  • Availability: Low
    CVE-2026-15518 may slightly degrade system performance without fully affecting service availability.

CVE-2026-15518 References

External References

CWE Common Weakness Enumeration

CWE-434

CAPEC Common Attack Pattern Enumeration and Classification

  • 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.

Protect Your Infrastructure against CVE-2026-15518: 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-2026-15525 – A vulnerability was detected in kLOsk adloop up to 0.9.0. This vulnerability affects the function _validate_urls of the file src/adloop/ads/write.p...
  • CVE-2026-15524 – A security vulnerability has been detected in alioshr memory-bank-mcp up to 0.2.1/3.1. This affects an unknown part of the file list-project-files-...
  • CVE-2026-15523 – A weakness has been identified in CodeAstro Simple Online Leave Management System 1.0. Affected by this issue is some unknown functionality of the ...
  • CVE-2026-15522 – A security flaw has been discovered in tugcantopaloglu godot-mcp 2.0.0. Affected by this vulnerability is the function validatePath of the file bui...
  • CVE-2026-15521 – A vulnerability was identified in makafeli n8n-workflow-builder up to 0.11.0. Affected is an unknown function of the file build/server.cjs of the c...