YOURLS Stored Cross Site Scripting (XSS)
Date: 2022-05
Affected: composer/yourls/yourls
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2020-27388
CWE: CWE-79
CVSS: 5.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

Multiple Stored Cross Site Scripting (XSS) vulnerabilities exist in the YOURLS Admin Panel, Versions 1.5 - 1.7.10. An authenticated user must modify a PHP plugin with a malicious payload and upload it, resulting in multiple stored XSS issues.


Mitigations:

Architectural layers (MAESTRO):