CVE-2026-28556

MEDIUM

5.4

Description

wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to move, merge, or split any forum topic via the topic_move, topic_merge, and topic_split form action handlers. Attackers with a valid form nonce can reorganize arbitrary forum content without moderator permissions, including relocating topics to private forums.

CVE Details

CVSS v3.1 Score5.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/28/2026

Last Modified3/4/2026

Sourcenvd

Honeypot Sightings0

Affected Products

gvectors:wpforo_forum

Weaknesses (CWE)

CWE-862

References

https://wordpress.org/plugins/wpforo/(disclosure@vulncheck.com)

https://wordpress.org/plugins/wpforo/#developers(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/wpforo-forum-missing-authorization-via-topic-management-form-handlers(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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