Perch CMS 3.2 Stored Cross-Site Scripting via SVG File Upload
Priority MEDIUM 56CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Perch | Perch | 3.2 | — | No fix listed | CNA |
- Perch VendorPerch Affected 3.2 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:grabaperch:perch:3.2:*:*:*:*:*:*:* | 3.2 | Vulnerable | Grabaperch |
- cpe:2.3:a:grabaperch:perch:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·Grabaperch
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-53890
- 2026-10-03 Alias added: GHSA-j5m3-4q76-pf42
References
Exploit 1
Other 1
More Grabaperch Perch vulnerabilities
- TI-2023-30172 Perch CMS 3.2 Remote Code Execution via Unrestricted File Upload CVSS 4.0HIGH 8.6
- TI-2025-41039 A stored Cross-Site Scripting (XSS) vulnerability exists in Perch CMS version 3.2. CVSS 3.1MEDIUM 6.1
- TI-2017-11679 Perch Content Management System 3.0.3 allows unrestricted file upload (with resultant… CVSS 3.1MEDIUM 4.8
Sources
- CVE-2023-53890 · CVE Program
- CVE-2023-53890 · NVD
- FIRST EPSS
- GHSA-j5m3-4q76-pf42 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences