CVE-2025-9629: CWE-352 Cross-Site Request Forgery (CSRF) in shenyanzhi USS Upyun
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.
AI Analysis
Technical Summary
The USS Upyun plugin for WordPress versions up to 1.5.0 suffers from a CSRF vulnerability due to improper nonce validation in the uss_setting_page function handling the uss_set form type. This allows unauthenticated attackers to cause authenticated administrators to unknowingly modify sensitive Upyun cloud storage configuration settings by submitting forged requests. The vulnerability is tracked as CVE-2025-9629 with a CVSS 3.1 base score of 4.3 (medium severity). No patch or official fix information is currently provided, and the plugin is not a cloud service, so remediation depends on vendor updates or user action.
Potential Impact
An attacker can exploit this vulnerability to modify critical cloud storage settings in the USS Upyun plugin by tricking an authenticated administrator into submitting a malicious request. This could lead to unauthorized changes in bucket names, operator credentials, upload paths, and image processing parameters. While this does not directly disclose data or cause denial of service, it compromises the integrity of cloud storage configurations, potentially impacting application behavior or security.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, administrators should be cautious about clicking on untrusted links while logged into WordPress with administrative privileges. Monitoring for vendor updates and applying any forthcoming patches promptly is recommended.
CVE-2025-9629: CWE-352 Cross-Site Request Forgery (CSRF) in shenyanzhi USS Upyun
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The USS Upyun plugin for WordPress versions up to 1.5.0 suffers from a CSRF vulnerability due to improper nonce validation in the uss_setting_page function handling the uss_set form type. This allows unauthenticated attackers to cause authenticated administrators to unknowingly modify sensitive Upyun cloud storage configuration settings by submitting forged requests. The vulnerability is tracked as CVE-2025-9629 with a CVSS 3.1 base score of 4.3 (medium severity). No patch or official fix information is currently provided, and the plugin is not a cloud service, so remediation depends on vendor updates or user action.
Potential Impact
An attacker can exploit this vulnerability to modify critical cloud storage settings in the USS Upyun plugin by tricking an authenticated administrator into submitting a malicious request. This could lead to unauthorized changes in bucket names, operator credentials, upload paths, and image processing parameters. While this does not directly disclose data or cause denial of service, it compromises the integrity of cloud storage configurations, potentially impacting application behavior or security.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, administrators should be cautious about clicking on untrusted links while logged into WordPress with administrative privileges. Monitoring for vendor updates and applying any forthcoming patches promptly is recommended.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-08-28T19:34:06.478Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 68ca1a3d571b2840ff0172f3
Added to database: 9/17/2025, 2:17:33 AM
Last enriched: 4/9/2026, 11:03:06 AM
Last updated: 5/10/2026, 12:55:41 AM
Views: 135
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