What is CVE-2025-52667?

CVE-2025-52667 is a medium-severity vulnerability in Revive Adserver, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-11-20.

How severe is CVE-2025-52667?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Revive Adserver

CVE-2025-52667

Missing JSON Content-Type header in a script in Revive Adserver 6.0.1 and 5.5.2 and earlier versions causes a stored XSS attack to be possible for a logged in manager user.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-11-20 · last modified 2026-09-26.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (28.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Revive Adserver — versions 6, 5, 6.0.2
Revive-Adserver Revive Adserver

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

hackerone.com/reports/3399809 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2025-52667?: CVE-2025-52667 is a medium-severity vulnerability in Revive Adserver, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-11-20.
How severe is CVE-2025-52667?: Medium severity. CVSS v3 base score is 5.4 out of 10.