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TI-2019-07255 Aliases CVE-2019-9875GHSA-7gvq-j6pg-875g

Deserialization of Untrusted Data in the anti CSRF module in Sitecore through 9.1 allows…

Priority CRITICAL 97Exploited in the wildCWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-502.

Summary

Deserialization of Untrusted Data in the anti CSRF module in Sitecore through 9.1 allows an authenticated attacker to execute arbitrary code by sending a serialized .NET object in an HTTP POST parameter.

Why it matters now

Exploitation Active In CISA KEV since 2025-03-26CISA due date 2025-04-16
EPSS 0.25436 97th 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

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sitecore:cms:*:*:*:*:*:*:*:*up to 9.1VulnerableSitecore
  • cpe:2.3:a:sitecore:cms:*:*:*:*:*:*:*:* Versions up to 9.1 Vulnerable ·Sitecore

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2025-03-26 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2019-9875
  3. 2026-10-03 Alias added: GHSA-7gvq-j6pg-875g

References

Exploit 1

Advisory 2

  • TI-2019-07254 Deserialization of Untrusted Data in the Sitecore.Security.AntiCSRF (aka anti CSRF)… KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-08376 Multiple cross-site scripting (XSS) vulnerabilities in Sitecore CMS 9.0.1 and earlier… CVSS 3.0MEDIUM 6.1
  • TI-2017-08462 In Sitecore 8.2, there is absolute path traversal via the… CVSS 3.0MEDIUM 4.9
  • TI-2017-08461 In Sitecore 8.2, there is reflected XSS in the shell/Applications/Tools/Run Program parameter. CVSS 3.0MEDIUM 5.4
  • TI-2009-02070 Cross-site scripting (XSS) vulnerability in login/default.aspx in Sitecore CMS before… CVSS 2.0MEDIUM 4.3
  • TI-2014-08268 Cross-site scripting (XSS) vulnerability in Sitecore CMS before 7.0 Update-4 (rev. CVSS 2.0MEDIUM 4.3
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences