CVE-2026-28555 — MEDIUM (4.3)

Q: How severe is CVE-2026-28555?

CVE-2026-28555 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-28555?

Check the references section above for vendor advisories and patch information. Affected products include: Gvectors Wpforo Forum.

Vulnerability 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.

CVSS Score

4.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Gvectors	Wpforo Forum	>= 2.4.0, < 2.4.16

Related Weaknesses (CWE)

CWE-862

References

https://wordpress.org/plugins/wpforo/Product
https://wordpress.org/plugins/wpforo/#developersRelease Notes
https://www.vulncheck.com/advisories/wpforo-forum-missing-authorization-via-topiThird Party Advisory

FAQ

What is CVE-2026-28555?

CVE-2026-28555 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 ...

How severe is CVE-2026-28555?

CVE-2026-28555 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-28555?

Check the references section above for vendor advisories and patch information. Affected products include: Gvectors Wpforo Forum.