CVE-2026-76931
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.
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/zephyr-project-manager/trunk/includes/Base/AjaxHandler.php#L305
- https://plugins.trac.wordpress.org/browser/zephyr-project-manager/trunk/includes/Core/Projects.php#L1052
- https://plugins.trac.wordpress.org/browser/zephyr-project-manager/trunk/includes/Core/Tasks.php#L1308
- https://plugins.trac.wordpress.org/changeset/3656930/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/888dfcc5-a903-4b2d-846b-c93f0b33b0c7?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.