CVE-2025-55123

Name: CVE-2025-55123
Creator: NVD / NIST
Published: 2025-11-20T20:16:23.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2025-55123 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Improper neutralization of input in Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes manager accounts to be able to craft XSS attacks to their own advertiser users.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

Improper neutralization of input in Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes manager accounts to be able to craft XSS attacks to their own advertiser users.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.38%

29.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Revive-Adserver	Revive Adserver	6.0.0

References

https://hackerone.com/reports/3404968Exploit, Issue Tracking, Third Party Advisory
https://hackerone.com/reports/3404968Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Nov 20, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-55123?

Improper neutralization of input in Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes manager accounts to be able to craft XSS attacks to their own advertiser users.

How severe is CVE-2025-55123?

CVE-2025-55123 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2025-55123?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-55123?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST