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VULNERABILITIES

CVE-2026-28555 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://wordpress.org/plugins/wpforo/ [email protected]Product
https://wordpress.org/plugins/wpforo/#developers [email protected]Release Notes
https://www.vulncheck.com/advisories/wpforo-forum-missing-authorization-via-topic-close-ajax-handler [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-862Missing Authorization[email protected]

Affected Products

ProductVersions
gvectors wpforo forum
>= 2.4.0, < 2.4.16

CPE

  • cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:wordpress:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-28555
NVD Published Date:
Feb 28, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-28555 Details - Not Deferred