CVE-2021-22872 Information

Description

Revive Adserver before 5.1.0 is vulnerable to a reflected cross-site scripting (XSS) vulnerability via the publicly accessible afr.php delivery script. While this issue was previously addressed in modern browsers as CVE-2020-8115 some older browsers (e.g. IE10) that do not automatically URL encode parameters were still vulnerable.

CVSS Vector

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

Reference

https://github.com/revive-adserver/revive-adserver/commit/1dbcf7d50 http://seclists.org/fulldisclosure/2021/Jan/60 https://github.com/revive-adserver/revive-adserver/commit/00fdb8d0e https://hackerone.com/reports/986365 http://packetstormsecurity.com/files/161070/Revive-Adserver-5.0.5-Cross-Site-Scripting-Open-Redirect.html https://www.revive-adserver.com/security/revive-sa-2021-001/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1