CVE-2026-28555
Missing Authorization in wpForo 2.4.14 Allows Topic Manipulation
Publication date: 2026-02-28
Last updated on: 2026-03-04
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gvectors | wpforo_forum | From 2.4.0 (inc) to 2.4.16 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-862 | The product does not perform an authorization check when an actor attempts to access a resource or perform an action. |
Attack-Flow Graph
AI Powered Q&A
How can this vulnerability be detected on my network or system? Can you suggest some commands?
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What immediate steps should I take to mitigate this vulnerability?
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How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
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Can you explain this vulnerability to me?
The vulnerability in wpForo Forum version 2.4.14 is a missing authorization flaw. It allows authenticated subscribers to close or reopen any forum topic by using the wpforo_close_ajax handler. Attackers can submit a valid nonce along with an arbitrary topic ID to bypass the moderator permission checks, enabling them to disrupt forum discussions.
How can this vulnerability impact me? :
This vulnerability can impact you by allowing unauthorized users with subscriber-level access to manipulate forum topics. They can close or reopen any topic without proper permissions, which can disrupt normal forum discussions and potentially degrade the user experience or the integrity of the forum content.