The Webmention plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.6.2 in the 'MF2::parse_authorpage' function via the 'Receiver::post' function. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

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Fixes

Solution

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History

Thu, 02 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 02 Apr 2026 08:00:00 +0000

Type Values Removed Values Added
Description The Webmention plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.6.2 in the 'MF2::parse_authorpage' function via the 'Receiver::post' function. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
Title Webmention <= 5.6.2 - Unauthenticated Blind Server-Side Request Forgery
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-02T13:45:20.365Z

Reserved: 2026-01-07T19:18:17.788Z

Link: CVE-2026-0686

cve-icon Vulnrichment

Updated: 2026-04-02T13:45:05.733Z

cve-icon NVD

Status : Received

Published: 2026-04-02T08:16:27.850

Modified: 2026-04-02T08:16:27.850

Link: CVE-2026-0686

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses