Vulnerability · Published Feb 28, 2026 · Assigned by VulnCheck
CVE-2026-28555wpForo Forum 2.4.14 Missing Authorization via Topic Close AJAX Handler
Medium 4.3
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 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 76.6% 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 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.
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:N/I:L/A:N