XSS in Grabaperch Perch

CVE-2023-53890

Perch CMS 3.2 contains a stored cross-site scripting vulnerability that allows authenticated users to upload malicious SVG files with embedded JavaScript. Attackers can craft SVG files with script tags that execute when the file is viewed, potentially stealing user session information or performing client-side attacks.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.3th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-53890?
CVE-2023-53890 is a medium-severity vulnerability in Grabaperch Perch, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-12-15.
How severe is CVE-2023-53890?
Medium severity. CVSS v3 base score is 5.4 out of 10.