USS Upyun <= 1.5.0 - Cross-Site Request Forgery
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.
Summary
The USS Upyun plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.5.0. This is due to missing or incorrect nonce validation on the uss_setting_page function when processing the uss_set form type. This makes it possible for unauthenticated attackers to modify critical Upyun cloud storage settings including bucket name, operator credentials, upload paths, and image processing parameters via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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 |
|---|---|---|---|---|---|
| shenyanzhi | USS Upyun | up to 1.5.0 | — | No fix listed | CNA |
- USS Upyun Vendorshenyanzhi Affected up to 1.5.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9629
- 2026-10-03 Alias added: GHSA-xpv2-wfwf-r6xf
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d2cee46a-03d5-4a31-ba15-28be97794199?source=cve
- https://plugins.trac.wordpress.org/browser/uss-upyun/tags/1.5.0/upyun-uss-wordpress.php#L493
- https://plugins.trac.wordpress.org/browser/uss-upyun/tags/1.5.0/upyun-uss-wordpress.php#L499
- https://plugins.trac.wordpress.org/browser/uss-upyun/tags/1.5.1/upyun-uss-wordpress.php#L493
More shenyanzhi vulnerabilities
- TI-2024-12564 MemorialDay <= 1.0.4 - Cross-Site Request Forgery to Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.1
Sources
- CVE-2025-9629 · CVE Program
- CVE-2025-9629 · NVD
- FIRST EPSS
- GHSA-xpv2-wfwf-r6xf · 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