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Medium 6.4Published Jul 2, 2026

CVE-2026-14449POST-based reflected XSS via the thanks parameter in form components

Updated under an hour ago ()

Does this affect you?

It affects u5CMS. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

u5CMS through v12.8.8 is vulnerable to reflected XSS via the ‘thanks’ parameter in multiple form components

CVSS
6.4 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
NCSC.ch
NVD analysis
Deferred
Record last updated
Jul 2, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
u5CMS u5CMS
u5cms:u5cms (from the name)
through 12.8.8
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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