CVE-2026-4032
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 · uneditedThe CodeColorer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class' parameter in 'cc' comment shortcode in versions up to, and including, 0.10.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires comments to be enabled on the target post and guest comments to be allowed.
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 · high confidenceThe CodeColorer WordPress plugin up to version 0.10.1 has a stored XSS vulnerability in the 'cc' comment shortcode's 'class' parameter. Unauthenticated attackers can inject arbitrary JavaScript via comments when comments are enabled and guest comments are allowed, due to insufficient input sanitization and output escaping.
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
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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 CodeColorer plugin versionGo to WordPress admin > Plugins > Installed Plugins > CodeColorer, or check the plugin header file (e.g., codecolorer.php) for the 'Version' fieldAffected if the installed version is 0.10.1 or lower
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Confirm WordPress comments are enabledGo to Settings > Discussion in WordPress admin, or check the 'comment_status' field for posts in the wp_posts database tableAffected if comments are enabled globally or on specific posts/pages
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Check if guest comments are allowedGo to Settings > Discussion > Other comment settings in WordPress admin, or check the 'comment_registration' option in wp_options tableAffected if guest/anonymous users are allowed to post comments (comment_registration is set to 0 or unchecked)
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Confirm comment moderation is not filtering shortcodesCheck Settings > Discussion > Before a comment appears, or review the moderation queue for any pending comments with [cc] shortcode contentAffected if comment moderation is disabled or shortcodes in comments are not being stripped before display
The environment is affected if CodeColorer plugin version is 0.10.1 or lower AND WordPress comments are enabled AND guest comments are allowed, allowing unauthenticated attackers to inject XSS via the cc shortcode class parameter.
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 CodeColorer plugin to version beyond 0.10.1 when available, or disable guest comments and moderate all comments until the patch can be applied.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 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 $2,272.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-4032 — 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-2026-4032 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