CVE-2021-42770

PoC —

CVSS 3.1

6.1 medium

EPSS

1%p71

Published

Nov 8, 2021 (Nov 8, 2021)

Modified

Jun 17, 2026

Description

A Cross-site scripting (XSS) vulnerability was discovered in OPNsense before 21.7.4 via the LDAP attribute return in the authentication tester.

Vendors: opnsense
Products: opnsense
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 (1.4%)

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