CVE-2021-27237

PoC —

CVSS 3.1

4.8 medium

EPSS

<1%p60

Published

Feb 16, 2021 (Feb 16, 2021)

Modified

Jun 17, 2026

Description

The admin panel in BlackCat CMS 1.3.6 allows stored XSS (by an admin) via the Display Name field to backend/preferences/ajax_save.php.

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

NVD CVE.org GitHub PoCs EPSS (1.0%)

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