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TI-2023-11424 Aliases CVE-2023-26262GHSA-pq46-vx2x-6fxf

An issue was discovered in Sitecore XP/XM 10.3.

Priority HIGH 67CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
High
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-434.

Summary

An issue was discovered in Sitecore XP/XM 10.3. As an authenticated Sitecore user, a unrestricted language file upload vulnerability exists the can lead to direct code execution on the content management (CM) server.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01678 77th 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
Poc
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 · 2

CPEVersionsRoleVendor
cpe:2.3:a:sitecore:experience_manager:*:*:*:*:*:*:*:*up to 10.3VulnerableSitecore
cpe:2.3:a:sitecore:experience_platform:*:*:*:*:*:*:*:*before 10.3VulnerableSitecore
  • cpe:2.3:a:sitecore:experience_manager:*:*:*:*:*:*:*:* Versions up to 10.3 Vulnerable ·Sitecore
  • cpe:2.3:a:sitecore:experience_platform:*:*:*:*:*:*:*:* Versions before 10.3 Vulnerable ·Sitecore

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-26262
  2. 2026-10-03 Alias added: GHSA-pq46-vx2x-6fxf

References

Exploit 1

Advisory 1

  • 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-2025-24533 Sitecore XM and XP Hardcoded Credentials CVSS 3.1HIGH 7.5
  • TI-2025-33608 Sitecore Experience Remote Code Execution through Insecure Deserialization CVSS 3.1HIGH 8.8
  • TI-2025-24535 Sitecore PowerShell Extension RCE via Unrestricted Upload CVSS 3.1HIGH 8.8
See all 10 →

Sources

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