CVE-2025-27208: revive adserver XSS — Exploit & Fix

Description

A reflected Cross-Site Scripting (XSS) vulnerability has been identified in Revive Adserver version 5.5.2. An attacker could trick a user with access to the user interface of a Revive Adserver instance into clicking on a specifically crafted URL and execute injected JavaScript code in the context of the victim's browser. The session cookie cannot be accessed, but a number of other operations could be performed. The vulnerability is present in the admin-search.php file and can be exploited via the compact parameter.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/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	< 6.0.0
revive-adserver	revive_adserver	All

References

Advisories & Patches

https://hackerone.com/reports/3091390 http://seclists.org/fulldisclosure/2025/Oct/20

Exploits

https://hackerone.com/reports/3091390

Frequently Asked Questions

What is CVE-2025-27208? +

A reflected Cross-Site Scripting (XSS) vulnerability has been identified in Revive Adserver version 5.5.2. An attacker could trick a user with access to the user interface of a Revive Adserver instance into clicking on a specifically crafted URL and execute injected JavaScript code in the context of the victim's browser. The session cookie cannot be accessed, but a number of other operations could be performed. The vulnerability is present in the admin-search.php file and can be exploited via the compact parameter. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-27208? +

CVE-2025-27208 has a CVSS v3.1 score of 6.1 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-2025-27208? +

CVE-2025-27208 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-2025-27208? +

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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