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CVE-2026-0688

MEDIUM 6.4 CVSS 3.1
Published
April 2, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-918
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Description

The Webmention plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.6.2 via the 'Tools::read' function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • pfefferle Webmention — Up to and including 5.6.2

References

  • github.com https://github.com/pfefferle/wordpress-webmention/blob/057223cee18a9e93b017d0f21db6ea77a7686489/includes/class-tools.php#L81
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/webmention/tags/5.6.2/includes/class-tools.php#L81
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3494831/webmention
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/02c9beba-dfa5-4a30-8355-62ff9a2630f7?source=cve
  • nvd.nist.gov Official NVD record