CVE-2025-23572
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 · uneditedCross-Site Request Forgery (CSRF) vulnerability in Dave Konopka UpDownUpDown updownupdown-postcomment-voting allows Stored XSS.This issue affects UpDownUpDown: from n/a through <= 1.1.
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 confidenceCross-Site Request Forgery (CSRF) vulnerability in the UpDownUpDown WordPress plugin's comment voting feature (updownupdown-postcomment-voting) allows attackers to trick authenticated users into performing unintended voting actions that inject malicious scripts, leading to Stored XSS. The plugin lacks proper anti-CSRF token validation on comment voting POST requests.
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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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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Verify UpDownUpDown plugin is installedCheck the WordPress plugin directory for the updownupdown plugin folder, or query the wp_options table for the active_plugins entry containing 'updownupdown'Affected if The plugin is installed and active in WordPress
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Confirm comment voting feature is enabledCheck plugin settings page in WordPress admin under the UpDownUpDown configuration, or inspect database wp_options for comment voting related keys like 'updownupdown-postcomment-voting' set to enabledAffected if The comment voting feature (updownupdown-postcomment-voting) is enabled in the plugin settings
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Inspect comment voting POST handler for nonce validationLocate the PHP file handling comment voting POST requests (typically in the plugin's main file or a voting handler file), search for 'wp_verify_nonce' or 'check_ajax_referer' calls within the voting action handler functionAffected if The voting POST handler lacks nonce verification (no wp_verify_nonce or check_ajax_referer call before processing the vote)
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Check for CSRF token presence in voting form or AJAX callIf the voting is triggered via frontend AJAX, inspect the JavaScript to see if a nonce token is included in the request data; if via a form, inspect the form HTML for a hidden nonce fieldAffected if No CSRF token (nonce) is included in the voting request or form submission
A user is affected if the UpDownUpDown plugin is installed with comment voting enabled and the voting POST handler lacks anti-CSRF nonce validation.
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 dataImplement anti-CSRF token (nonce) verification on all comment voting POST handlers in the UpDownUpDown plugin to prevent attackers from crafting malicious voting requests on behalf of authenticated users.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-23572 — 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-2025-23572 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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