CVE-2021-24980

PoC —

CVSS 3.1

6.1 medium

EPSS

<1%p55

Published

Dec 27, 2021 (Dec 27, 2021)

Modified

Jun 17, 2026

Description

The Gwolle Guestbook WordPress plugin before 4.2.0 does not sanitise and escape the gwolle_gb_user_email parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue in an admin page

Vendors: gwolle guestbook project
Products: gwolle guestbook
Ecosystems: WordPress
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 (0.8%)

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