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CVE-2025-22388

MEDIUM
5.7
CVSS Score
Published: January 4, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 08:46 AM UTC
1 product affected across 1 vendorOptimizely CMS

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Severity
MEDIUM5.7
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

An issue was discovered in Optimizely EPiServer.CMS.Core before 12.22.0. A high-severity Stored Cross-Site Scripting (XSS) vulnerability exists in the CMS, allowing malicious actors to inject and execute arbitrary JavaScript code, potentially compromising user data, escalating privileges, or executing unauthorized actions. The issue exists in multiple areas, including content editing, link management, and file uploads.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Optimizely CMS· Optimizely
95%
v < 12.22.0
Affected range stops below 12.22.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://support.optimizely.com/hc/en-us/articles/33182047260557-Content-Management-System-CMS-Security-Advisory-CMS-2025-01

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.7MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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