Wp Social Login and Register Social Counter <= 3.1.3 - Missing Authorization in Cache REST Endpoints to Social Counter Tampering

Missing Authorization
CVE CVE-2025-13620
CVSS Medium (5.3)
Publicly Published December 4, 2025
Last Updated February 4, 2026
Researcher Dmitrii Ignatyev
Description

The Wp Social Login and Register Social Counter plugin for WordPress is vulnerable to missing authorization in versions up to, and including, 3.1.3. This is due to the REST routes wslu/v1/check_cache/{type}, wslu/v1/save_cache/{type}, and wslu/v1/settings/clear_counter_cache being registered with permission_callback set to __return_true and lacking capability or nonce validation in their handlers. This makes it possible for unauthenticated attackers to clear or overwrite the social counter cache via crafted REST requests.

References

1 affected software package

Software Type Plugin
Software Slug wp-social (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.1.3
Patched Version
  • 3.1.4
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