What is CVE-2025-55124?

CVE-2025-55124 is a medium-severity vulnerability in Revive Adserver, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-11-20.

How severe is CVE-2025-55124?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Revive Adserver

CVE-2025-55124

Improper neutralisation of input in Revive Adserver 6.0.0+ causes a reflected XSS attack in the banner-zone.php script.

Vulnerability class: XSS (Cross-Site Scripting)

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

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (38.9th percentile), scored 2026-10-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.9% 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, 6.0.2
Revive-Adserver Revive Adserver

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

hackerone.com/reports/3403727 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2025-55124?: CVE-2025-55124 is a medium-severity vulnerability in Revive Adserver, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-11-20.
How severe is CVE-2025-55124?: Medium severity. CVSS v3 base score is 6.1 out of 10.