XSS in Optimizely Cms

CVE-2025-22388

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (23.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-22388: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-22388?
CVE-2025-22388 is a medium-severity vulnerability in Optimizely Cms, classified under Cross-site Scripting. CVSS score: 5.7/10. Published 2025-01-04.
How severe is CVE-2025-22388?
Medium severity. CVSS v3 base score is 5.7 out of 10.