Zephyr Project Manager <= 3.3.205 - Authenticated (Custom+) Stored Cross-Site Scripting via 'message' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| dylanjkotze | Zephyr Project Manager | up to 3.3.205 | — | No fix listed | CNA |
- Zephyr Project Manager Vendordylanjkotze Affected up to 3.3.205 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-76931
- 2026-10-03 Alias added: GHSA-9q2r-rq8p-xj26
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/888dfcc5-a903-4b2d-846b-c93f0b33b0c7?source=cve
- 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/Base/AjaxHandler.php#L305
- https://plugins.trac.wordpress.org/browser/zephyr-project-manager/trunk/includes/Core/Tasks.php#L1308
- https://plugins.trac.wordpress.org/changeset/3656930/
More dylanjkotze vulnerabilities
- TI-2024-06061 Zephyr Project Manager < 3.3.99 - Editor+ XSS CVSS 3.1MEDIUM 5.4
- TI-2024-07066 Zephyr Project Manager <= 3.3.101 - Authenticated (Subscriber+) Limited Privilege Escalation CVSS 3.1HIGH 8.1
- TI-2024-29505 WordPress Zephyr Project Manager plugin <= 3.3.102 - Insecure Direct Object References (IDOR) vulnerability CVSS 3.1HIGH 7.1
- TI-2024-06817 Zephyr Project Manager <= 3.3.100 - Authenticated (Subscriber+) Stored Cross-Site Scripting via filename Parameter CVSS 3.1MEDIUM 6.4
- TI-2022-01688 Zephyr Project Manager <= 3.2.40 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
- TI-2026-86493 Stored cross-site scripting in Zephyr Project Manager for WordPress CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-76931 · CVE Program
- CVE-2026-76931 · NVD
- FIRST EPSS
- GHSA-9q2r-rq8p-xj26 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences