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Medium · 5.4 CVE-2026-28556 EUVD-2026-9105GHSA-rw6w-6q2w-c8g8

wpForo Forum 2.4.14 Missing Authorization via Topic Management Form Handlers

Published Feb 28, 2026 · Updated May 11, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
gVectors Team wpForo Forum 2.4 – < 2.4.16 2.4.16

References