CVE-2021-3355

PoC ×4—

CVSS 3.1

5.4 medium

EPSS

7%p94

Published

Feb 24, 2021 (Feb 24, 2021)

Modified

Jun 17, 2026

Description

A stored-self XSS exists in LightCMS v1.3.4, allowing an attacker to execute HTML or JavaScript code in a vulnerable Title field to /admin/SensitiveWords.

Vendors: lightcms project
Products: lightcms
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 (7.2%)

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