CVE-2026-76931 json
Zephyr Project Manager <= 3.3.205 - Authenticated (Custom+) Stored Cross-Site Scripting via 'message' Parameter
published 2026-09-08 2 mo ago modified 2026-09-08 2 mo ago also EUVD-2026-72696
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- dylanjkotze Zephyr Project Manager
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/888dfcc5-a903-4b2d-846b-c93f0b33b0c7?source=cve
- plugins.trac.wordpress.org /browser/zephyr-project-manager/trunk/includes/Core/Projects.php#L1052
- plugins.trac.wordpress.org /browser/zephyr-project-manager/trunk/includes/Base/AjaxHandler.php#L305
- plugins.trac.wordpress.org /browser/zephyr-project-manager/trunk/includes/Core/Tasks.php#L1308
- plugins.trac.wordpress.org /changeset/3656930/
Sources
- CVE List CVE-2026-76931
- NVD CVE-2026-76931
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.