CVE-2025-31420
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIncorrect Privilege Assignment vulnerability in Tomdever wpForo Forum wpforo allows Privilege Escalation.This issue affects wpForo Forum: from n/a through <= 2.4.2.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA privilege escalation vulnerability in the wpForo Forum WordPress plugin (versions <= 2.4.2) allows authenticated users to gain higher privileges due to incorrect privilege assignment logic. Users with lower-level forum permissions can exploit this flaw to access administrative or moderator functions they should not have access to.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- High
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify wpForo Forum plugin installation and versionNavigate to WordPress admin > Plugins and locate wpForo Forum to view the installed version, or inspect the plugin header file wp-content/plugins/wpforo/functions.php for the version declarationAffected if Plugin version is 2.4.2 or lower
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Audit existing user roles with forum permissionsReview all WordPress user accounts and custom wpForo forum roles (Subscriber, Member, Guest, Moderator) by going to Users > All Users and checking wpForo > Members > Roles for any custom role assignmentsAffected if Lower-level forum users (Subscriber, Member, or Guest roles) are present in the system
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Check for unauthorized privilege escalationCompare user capabilities against expected baselines by reviewing each user account in WordPress admin and checking if any non-admin users now have administrative access or moderator functions they were not previously assignedAffected if Users with low-level forum permissions have gained access to admin or moderator functions they should not possess
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Review access permission configurationInspect wpForo > Settings > General > Access section to verify which forum roles have been granted access to what levels of functionality, looking for any misconfigured privilege assignmentsAffected if Low-level forum roles have been granted elevated permissions beyond their intended scope
If wpForo Forum version is 2.4.2 or lower AND any low-level forum users have acquired administrative or moderator capabilities they should not have, the environment is affected by this privilege escalation vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpdate wpForo Forum plugin to the latest patched version as soon as available. If no patch exists, audit user roles and permissions immediately and consider disabling the plugin until a fix is released.
- Consultation4.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,392.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-31420 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-31420 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data