Is CVE-2026-24351 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-24351 being exploited in the wild.

How severe is CVE-2026-24351?

Medium severity, with a CVSS score of 5.4, published 27 February 2026.

Is there a fix for CVE-2026-24351?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-24351 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-24351?

Check whether you run Pluxml at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-24351: PluXml CMS Stored XSS in Static Pages editing functionality

CVE-2026-24351 · Severity: medium · CVSS 5.4 · Published 2026-02-27

PluXml, a lightweight content management system, is vulnerable to a security flaw in its static page editing feature. An authorized user with page-editing permissions can inject malicious scripts into the website. When other users or administrators visit the affected page, these scripts execute, potentially leading to unauthorized actions or the theft of sensitive session information.

Technologies: Pluxml. Vendors: Pluxml.

Quick answers

Is CVE-2026-24351 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-24351 being exploited in the wild.
How severe is CVE-2026-24351?: Medium severity, with a CVSS score of 5.4, published 27 February 2026.
Which products and versions are affected?: Pluxml 5.8.21, 5.9.0-rc7.
Is there a fix for CVE-2026-24351?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-24351 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-24351?: Check whether you run Pluxml at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A Stored Cross-Site Scripting (XSS) vulnerability exists in PluXml CMS within the Static Pages editing functionality. The root cause is improper neutralization of user-provided input (CWE-79) before it is stored and subsequently rendered in the web browser. An attacker with at least low-level editing privileges can inject arbitrary HTML and JavaScript into a static page. This payload executes in the context of any user who views the edited page, which could lead to session hijacking or unauthorized administrative actions. Versions 5.8.21 and 5.9.0-rc7 are confirmed vulnerable; the vendor has not yet provided a patch or official response regarding other versions.

Affected products

PluXml PluXml 5.8.21, 5.9.0-rc7

Timeline

2026-02-27: advisory: Initial disclosure by CERT.PL
2026-02-27: disclosed: NVD publication date

References

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