XSS in Pluxml
CVE-2026-24351
PluXml 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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (6.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Pluxml — versions 5.8.21, 5.9.0
- Pluxml Cms — versions 5.9.0-rc7, 5.8.21
Weakness classification (CWE)
References
- cert.pl/posts/2026/03/CVE-2026-24350 (Broken Link, third-party-advisory)
- pluxml.org/ (Product, product)
Frequently asked questions
- What is CVE-2026-24351?
- CVE-2026-24351 is a medium-severity vulnerability in Pluxml, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-02-27.
- How severe is CVE-2026-24351?
- Medium severity. CVSS v3 base score is 5.4 out of 10.