CVE-2026-28555

MEDIUM
2026-02-28 [email protected]
4.3
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Feb 28, 2026 - 22:16 nvd
MEDIUM 4.3

Tags

Authentication Bypass Wpforo Forum

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.

Analysis

Authenticated users in wpForo Forum 2.4.14 can manipulate forum topic states by exploiting improper authorization checks in the wpforo_close_ajax handler, allowing them to close or reopen discussions they should not have permission to modify. An attacker with subscriber privileges can craft requests with valid nonces to bypass moderator permission validation and disrupt forum operations. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +22
POC: 0

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CVE-2026-28555 vulnerability details – vuln.today
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