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TI-2025-16289 Aliases CVE-2025-22389GHSA-fc9r-7hhq-7wqj

An issue was discovered in Optimizely EPiServer.CMS.Core before 12.32.0.

Priority LOW 37CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
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 Optimizely EPiServer.CMS.Core before 12.32.0. A medium-severity vulnerability exists in the CMS, where the application does not properly validate uploaded files. This allows the upload of potentially malicious file types, including .docm .html. When accessed by application users, these files can be used to execute malicious actions or compromise users' systems.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00503 43rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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:optimizely:optimizely_cms:*:*:*:*:*:*:*:*before 12.32.0VulnerableOptimizely
  • cpe:2.3:a:optimizely:optimizely_cms:*:*:*:*:*:*:*:* Versions before 12.32.0 Vulnerable ·Optimizely

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-22389
  2. 2026-10-03 Alias added: GHSA-fc9r-7hhq-7wqj

References

  • TI-2023-15203 Optimizely CMS UI before v12.16.0 was discovered to contain a cross-site scripting (XSS)… CVSS 3.1MEDIUM 4.8
  • TI-2025-16290 An issue was discovered in Optimizely EPiServer.CMS.Core before 12.32.0. CVSS 3.1HIGH 7.5
  • TI-2025-16288 An issue was discovered in Optimizely EPiServer.CMS.Core before 12.22.0. CVSS 3.1MEDIUM 5.7

Sources