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CVE-2026-23643: Medium Vulnerability in CakePHP

A medium-severity cross-site scripting vulnerability exists in CakePHP's PaginatorHelper::limitControl() method. Organizations using affected versions should patch immediately.

MEDIUMCVSS 5.4 · Published January 16, 2026

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This vulnerability allows for cross-site scripting (XSS) via query string parameter manipulation in the CakePHP framework's PaginatorHelper::limitControl() method. The issue impacts versions prior to 5.2.12 and 5.3.1, which have addressed this vulnerability. The severity is classified as medium, with a CVSS score of 5.4, indicating a moderate risk for organizations utilizing this framework.

Risk to organizations includes the potential for unauthorized access to sensitive information or the execution of malicious scripts in the context of unsuspecting users. Attackers may leverage this vulnerability if they can induce users to visit a crafted URL, making user interaction a necessary condition for exploitation.

Organizations should prioritize patching immediately. The patches are available in CakePHP versions 5.2.12 and 5.3.1, which mitigate this vulnerability and should be applied as part of the routine security cycle.

Please note that there are currently no known exploits publicly available for this vulnerability, as confirmed by security advisories. Organizations are encouraged to stay informed about updates and apply them promptly to safeguard their applications.

Vulnerability Details

The PaginatorHelper::limitControl() method in CakePHP has been identified with a cross-site scripting vulnerability that arises due to improper handling of user input via query strings. The vulnerability is classified under CWE-79 for improper neutralization of input during web page generation ('XSS').

The CVSS score for this vulnerability is 5.4, indicating a medium severity level. The attack vector is network-based, and the complexity is low, requiring no special privileges from the attacker. However, it does necessitate user interaction, which can increase the chances of exploitation in specific scenarios.

Technical Analysis

The root cause of this vulnerability stems from inadequate input validation when processing query string parameters in the PaginatorHelper::limitControl() method. Attackers can manipulate these parameters to inject malicious scripts, leading to XSS attacks.

The attack vector is network-based, which means that an attacker could exploit this vulnerability by sending crafted requests over the network. The attack complexity is low, as it does not require any special conditions to be met, nor does it require the attacker to have any privileges. User interaction is mandatory, as the crafted URL must be accessed by the victim for the attack to be successful.

The impacts associated with this vulnerability include a low confidentiality and integrity impact, with no availability impact. This means that while data can be compromised, there is no direct threat to the availability of the applications.

Risk & Impact Analysis

Organizations using vulnerable versions of CakePHP face real-world risks, including potential data breaches and unauthorized execution of scripts. The blast radius can be significant, especially for applications that handle sensitive data and are heavily relied upon by users.

The urgency of addressing this vulnerability is underscored by its medium CVSS score. Organizations should schedule remediation as soon as possible to mitigate potential threats. Failure to patch may lead to exploitation in environments where user interactions are common.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The vulnerability affects all CakePHP versions prior to 5.2.12 and the specific version 5.3.0. Organizations should ensure they upgrade to at least version 5.2.12 or 5.3.1 to mitigate this issue.

Mitigation & Remediation

Organizations should patch their CakePHP installations to the latest versions (5.2.12 or 5.3.1) to remediate this vulnerability. If immediate patching is not possible, consider implementing input validation and sanitization controls for user inputs in the application to reduce the risk of exploitation.

Further, organizations may benefit from conducting routine security assessments, such as penetration testing to identify other potential vulnerabilities in their applications.

Detection Guidance

Monitor application logs for unusual patterns or behaviors that may indicate attempted exploitation. Behavioral anomalies such as unexpected scripts being executed can signal an active attack. Additionally, validate user input rigorously to prevent malicious data entry.

AppSecure Threat Intelligence Insight

The long-term significance of this vulnerability points towards the necessity for continuous vigilance in web application security. It represents a common trend where web frameworks are susceptible to XSS due to insufficient input validation.

Organizations should learn from this incident by reinforcing their security practices, including regular updates and security assessments. For further education on best practices, security teams can refer to resources like the penetration testing methodology and the importance of proactive security measures.

Engaging in continuous security practices will help mitigate similar vulnerabilities in the future. Furthermore, awareness of the latest security trends and vulnerabilities can empower teams to act swiftly in addressing issues as they arise.

Organizations are encouraged to explore additional resources such as our guide on vulnerability management programs to further enhance their security posture.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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