CVE-2026-28556

MEDIUM 5.4

wpForo Forum 2.4.14 Missing Authorization via Topic Management Form Handlers

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	gvectors team
Product	wpforo forum
Published	Feb 28, 2026
Last Updated	Mar 6, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

gVectors Team / wpForo Forum

2.4 < 2.4.16

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordpress.org: https://wordpress.org/plugins/wpforo/ wordpress.org: https://wordpress.org/plugins/wpforo/#developers vulncheck.com: https://www.vulncheck.com/advisories/wpforo-forum-missing-authorization-via-topic-management-form-handlers

Credits

Scott Moore - VulnCheck