Is CVE-2026-42321 in the CISA KEV catalog?

No. CVE-2026-42321 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-42321?

CVE-2026-42321 has a CVSS v4 base score of 8.4 (HIGH).

What is the EPSS score for CVE-2026-42321?

CVE-2026-42321 has an EPSS score of 0.34% (26th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-42321

HIGH

8.4

CVSS v4

NVD

Description

GLPI is a free asset and IT management software package. Starting in version 10.0.4 and prior to version 10.0.25, a technician can store an XSS payload in the asset locked tab. Upgrade to 10.0.25 or 11.0.7 to receive a patch.

CWE-79Cross-Site Scripting (XSS)CWE-116

CVSS v4 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

Impact

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Intelligence

0.34%probability of exploitation in 30 days

26thpercentile

Low risk: more likely to be exploited than 26% of all known CVEs.

References

https://github.com/glpi-project/glpi/security/advisories/GHSA-hwjc-8228-55x4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.