USS Upyun <= 1.5.0 - Cross-Site Request Forgery

Cross-Site Request Forgery (CSRF)
CVE CVE-2025-9629
CVSS Medium (4.3)
Publicly Published September 16, 2025
Last Updated September 17, 2025
Researcher Sandeep Kambhampati
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.

References

1 affected software package

Software Type Plugin
Software Slug uss-upyun (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.5.0
Patched Version
  • 1.5.1
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