In Sitecore 9.0 rev 171002, Persistent XSS exists in the Media Library and File Manager.
Priority LOW 28CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
In Sitecore 9.0 rev 171002, Persistent XSS exists in the Media Library and File Manager. An authenticated unprivileged user can modify the uploaded file extension parameter to inject arbitrary JavaScript.
Why it matters now
EPSS 0.01551 75th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-13493
- 2026-10-03 Alias added: GHSA-x9jp-5rg5-vc76
References
More Sitecore Experience Platform vulnerabilities
- TI-2021-18687 Sitecore XP 7.5 Initial Release to Sitecore XP 8.2 Update-7 is vulnerable to an insecure… KEVCVSS 3.1CRITICAL 9.8
- TI-2019-07254 Deserialization of Untrusted Data in the Sitecore.Security.AntiCSRF (aka anti CSRF)… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-33607 Sitecore Products ViewState Deserialization Vulnerability KEVCVSS 3.1CRITICAL 9.0
- TI-2023-17897 Multiple Sitecore products allow remote code execution. CVSS 3.1CRITICAL 9.8
- TI-2025-33610 HTML Cache Poisoning through Unsafe Reflections CVSS 3.1CRITICAL 9.8
- TI-2023-11899 Deserialization of Untrusted Data in Sitecore Experience Platform through 10.2 allows… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-13493 · CVE Program
- CVE-2019-13493 · NVD
- FIRST EPSS
- GHSA-x9jp-5rg5-vc76 · 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