CVE-2021-27520

PoC ×2—

CVSS 3.1

6.1 medium

EPSS

6%p93

Published

Mar 19, 2021 (Mar 19, 2021)

Modified

Jun 17, 2026

Description

A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "author" parameter.

Vendors: fudforum
Products: fudforum
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (6.4%)

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