CVE-2025-55123

MEDIUM

Published Nov 20, 2025 Modified Dec 5, 2025 CWE-79

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.

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CVSS v3.1 Score

5.4

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
revive-adserver	revive_adserver	All

References

Exploits

https://hackerone.com/reports/3404968 https://hackerone.com/reports/3404968

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. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-55123? +

CVE-2025-55123 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-55123? +

CVE-2025-55123 affects products from revive-adserver, specifically: revive_adserver. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-55123? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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