CVE-2023-34373 in Zephyr Project Manager Plugin
Summary
by MITRE • 06/19/2023
Cross-Site Request Forgery (CSRF) vulnerability in Dylan James Zephyr Project Manager plugin <= 3.3.93 versions.
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Analysis
by VulDB Data Team • 06/23/2026
The Cross-Site Request Forgery vulnerability identified in the Dylan James Zephyr Project Manager plugin affects versions 3.3.93 and earlier, representing a critical security flaw that permits unauthorized actions to be executed on behalf of authenticated users. This weakness stems from the plugin's inadequate validation of requests originating from external domains, allowing malicious actors to exploit the trust relationship between the user's browser and the vulnerable application. The vulnerability manifests when legitimate administrative functions are triggered through crafted requests without proper CSRF token verification.
The technical implementation of this flaw involves the absence of anti-CSRF mechanisms within the plugin's request handling processes. When administrators perform sensitive operations such as modifying project configurations, adding users, or altering permissions, the plugin fails to validate whether these requests originate from authorized sources within the same domain. Attackers can construct malicious web pages or leverage social engineering techniques to trick authenticated users into executing unintended actions against the vulnerable WordPress installation. The vulnerability specifically impacts the plugin's administrative interfaces where state-changing operations occur without proper cryptographic token validation.
Operational impact of this vulnerability extends beyond simple data manipulation to encompass complete administrative compromise of affected systems. An attacker with access to a victim's authenticated session can execute arbitrary commands within the plugin's administrative scope, potentially leading to unauthorized project modifications, user account manipulation, or even complete system infiltration. The risk is particularly elevated in environments where administrators frequently access the plugin from public or shared computing environments. This vulnerability enables attackers to perform privilege escalation attacks and maintain persistent access through compromised administrative credentials.
Mitigation strategies for this CSRF vulnerability should encompass immediate implementation of proper anti-CSRF token mechanisms within the plugin's codebase, aligning with established security standards such as those outlined in CWE-352. The solution requires generating unique, unpredictable tokens for each user session and validating these tokens against all state-changing requests. Organizations should also implement Content Security Policy headers to restrict cross-origin resource requests and consider implementing additional authentication layers such as two-factor authentication for administrative access. Regular security audits and code reviews should be conducted to identify similar vulnerabilities in other plugins and themes. This vulnerability demonstrates the importance of following ATT&CK framework principles for web application security, specifically targeting techniques related to credential access and privilege escalation through web-based attacks.
Recommendations include immediate patching of affected plugin versions, implementation of web application firewalls with CSRF detection capabilities, and comprehensive user education regarding suspicious website interactions. System administrators should also monitor for unauthorized administrative activities and maintain regular backups to facilitate recovery from potential compromise scenarios. The vulnerability highlights the critical need for security-conscious development practices and adherence to secure coding guidelines that prevent such fundamental flaws in web applications.