What is CVE-2025-66492?

CVE-2025-66492 is a high-severity vulnerability in Masacms, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2025-12-12.

How severe is CVE-2025-66492?

High severity. CVSS v3 base score is 8.2 out of 10.

XSS in Masacms

CVE-2025-66492

Masa CMS is an open source Enterprise Content Management platform. Versions 7.2.8 and below, 7.3.1 through 7.3.13, 7.4.0-alpha.1 through 7.4.8 and 7.5.0 through 7.5.1 are vulnerable to XSS when an unsanitized value of the ajax URL query pa…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (11.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.

Affected products

Masacms — versions < 7.2.9, >= 7.3.1, < 7.3.14, >= 7.4.0-alpha.1, < 7.4.8

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-66492?: CVE-2025-66492 is a high-severity vulnerability in Masacms, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2025-12-12.
How severe is CVE-2025-66492?: High severity. CVSS v3 base score is 8.2 out of 10.