CVE-2026-28555

wpForo Forum 2.4.14 Missing Authorization via Topic Close AJAX Handler

State: Published
Severity: 5.3 Medium
Published: Feb 28, 2026
Updated: May 11, 2026
Reserved: Feb 28, 2026

Description

wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to close or reopen any forum topic via the wpforo_close_ajax handler. Attackers submit a valid nonce with an arbitrary topic ID to bypass the moderator permission requirement and disrupt forum discussions.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	VulnCheck

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
wpForo ForumgVectors Team	2.4 to before 2.4.16Affected 2.4.16Not affected

References

wpForo Forum WordPress Pluginproduct
wpForo Forum Contributors & Developerspatch
VulnCheck Advisory: wpForo Forum 2.4.14 Missing Authorization via Topic Close AJAX Handlerthird-party-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.