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Medium severity · published Feb 28, 2026
CVE-2026-28554
wpForo Forum 2.4.14 Missing Authorization via Post Approval AJAX Handler
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to approve or unapprove any forum post via the wpforo_approve_ajax AJAX handler. Attackers exploit the nonce-only check by submitting a valid nonce with an arbitrary post ID to bypass moderation controls entirely.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WF
wpForo Forum · gVectors Team
2.4 before 2.4.16 · source: vendor, NVD
Affected product
WF
wpForo Forum
gVectors Team
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28554
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28554
Product
https://wordpress.org/plugins/wpforo/
Release Notes
https://wordpress.org/plugins/wpforo/#developers
Third Party Advisory
https://www.vulncheck.com/advisories/wpforo-forum-missing-authorization-via-post-approval-ajax-handler
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