CVE-2026-24351
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 · uneditedPluXml CMS is vulnerable to Stored XSS in Static Pages editing functionality. Attacker with editing privileges can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting edited page. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only versions 5.8.21 and 5.9.0-rc7 were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.
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 confidenceStored XSS vulnerability in PluXml CMS Static Pages editing functionality allows authenticated users with editing privileges to inject arbitrary HTML/JavaScript that persists and executes when visitors view the affected static pages.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 5.8.21= 5.9.0CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/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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Identify PluXml installationCheck for PluXml by looking for the /core/config.php file or the main index.php containing 'PluXml' in the web root directoryAffected if PluXml CMS is present on the server
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Determine installed PluXml versionOpen the file /core/version.txt in the PluXml installation directory to read the exact version numberAffected if The version is 5.8.21 or 5.9.0 (or falls within the affected version range)
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Verify Static Pages plugin/module is activeCheck the /core/admin/ directory for static.php or access the admin panel and navigate to the Static Pages section to confirm the feature is enabled and accessibleAffected if Static Pages functionality is enabled and accessible in the admin interface
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Check user accounts with editing privilegesReview user accounts in the /data/users/ directory (XML files) or through the admin panel under Users or Configuration to identify accounts with editor or administrator rolesAffected if There are user accounts with editing privileges that could create or modify static pages
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Inspect static pages for suspicious contentAccess the Static Pages management in the admin panel and review each page's content, or examine XML files in /data/contacts/ or /data/pages/ directories for unsanitized HTML script tagsAffected if Static pages contain unencoded script tags, iframe elements, or event handlers in their content
The environment is affected if PluXml versions 5.8.21 or 5.9.0 are installed, the Static Pages feature is active, and user accounts with editing privileges exist in the system.
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 input sanitization and output encoding on the Static Pages editing interface; restrict editing privileges to trusted users until vendor patch is available; consider Content Security Policy headers as defense-in-depth.
- 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-2026-24351 — 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-2026-24351 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
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