CVE-2026-76931
MediumCVSS 6.4Summary
The Zephyr Project Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'message' parameter in all versions up to and including 3.3.205 due to insufficient input sanitization and output escaping. This allows authenticated attackers with Custom-level access and above to inject arbitrary web scripts that execute when a user accesses an injected page. The vulnerability is only exploitable when the 'Directly link to project' setting is disabled.
Risk Assessment
The risk involves potential session hijacking, data theft, or malware distribution through script execution in the victim's browser. However, exploitation requires an additional configuration condition.
Recommendation
Update the plugin to the latest patched version immediately. Additionally, enable the 'Directly link to project' setting or restrict access to pages displaying project data.
Other vulnerabilities in Zephyr Project Manager
Original NVD description (English source)
The Zephyr Project Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘message’ parameter in all versions up to, and including, 3.3.205 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability can only be exploited when the 'Directly link to project' plugin setting is disabled.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS