Origin validation error in yourownprogrammer YOP Poll
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-346.
Summary
The YOP Poll plugin for WordPress is vulnerable to Origin Validation Error in all versions up to, and including, 7.0.10. This is due to the plugin transmitting a wp_rest nonce to window.opener via postMessage() with a wildcard targetOrigin. This makes it possible for unauthenticated attackers to steal a REST nonce scoped to a logged-in Administrator and use it to change the Administrator's email address and password, resulting in full account takeover. The Administrator must open an attacker-controlled page in order to exploit this vulnerability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| yourownprogrammer | YOP Poll | up to 7.0.10 | — | No fix listed | CNA |
- YOP Poll Vendoryourownprogrammer Affected up to 7.0.10 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-85682
- 2026-10-03 Alias added: GHSA-mm9j-887x-mwhq
References
More yourownprogrammer vulnerabilities
- TI-2023-25113 WordPress YOP Poll plugin <= 6.5.28 - Vote Manipulation Due to Broken Captcha Control Vulnerability CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-85682 · CVE Program
- CVE-2026-85682 · NVD
- FIRST EPSS
- GHSA-mm9j-887x-mwhq · 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