Vulnerability · Published Feb 28, 2026 · Assigned by VulnCheck

CVE-2026-28556wpForo Forum 2.4.14 Missing Authorization via Topic Management Form Handlers

Medium 5.4

In plain English

A medium-severity missing authorization in wpForo Forum from gVectors Team. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 83.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
gVectors Team	wpForo Forum	2.4 – before 2.4.16

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

wpForo Forum WordPress Plugin product
wpForo Forum Contributors & Developers patch
VulnCheck Advisory: wpForo Forum 2.4.14 Missing Authorization via Topic Management Form Handlers third-party-advisory