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)
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 (13.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.2% 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
- Grabaperch Perch — versions 3.2
- Perch — versions 3.2
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/51621 (Exploit, exploit)
- grabaperch.com/ (Product, product)
- www.vulncheck.com/advisories/perch-cms-stored-cross-site-scripting-via-svg-file… (Third Party Advisory, third-party-advisory)
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.