CVE-2021-20280

PoC —

CVSS 3.1

5.4 medium

EPSS

1%p68

Published

Mar 15, 2021 (Mar 15, 2021)

Modified

Jun 17, 2026

Description

Text-based feedback answers required additional sanitizing to prevent stored XSS and blind SSRF risks in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.

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

NVD CVE.org GitHub PoCs EPSS (1.3%)

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