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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Gvectors
  • Wpforo Forum
Wordpress
  • Wordpress

No data.

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References
Link Providers
https://wordpress.org/plugins/wpforo/ cve-icon cve-icon
https://wordpress.org/plugins/wpforo/#developers cve-icon cve-icon
https://www.vulncheck.com/advisories/wpforo-forum-missing-authorization-via-topic-close-ajax-handler cve-icon cve-icon
History

Mon, 02 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Vendors & Products Wordpress
Wordpress wordpress

Sat, 28 Feb 2026 22:00:00 +0000

Type Values Removed Values Added
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.
Title wpForo Forum 2.4.14 Missing Authorization via Topic Close AJAX Handler
First Time appeared Gvectors
Gvectors wpforo Forum
Weaknesses CWE-862
CPEs cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:*:*:*
cpe:2.3:a:gvectors:wpforo_forum:2.4.16:*:*:*:*:*:*:*
Vendors & Products Gvectors
Gvectors wpforo Forum
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-02-28T21:47:35.544Z

Updated: 2026-02-28T21:47:35.544Z

Reserved: 2026-02-28T18:54:23.280Z

Link: CVE-2026-28555

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-28T22:16:02.010

Modified: 2026-03-02T20:30:10.923

Link: CVE-2026-28555

cve-icon Redhat

No data.