CVE-2020-21353

PoC —

CVSS 3.1

5.4 medium

EPSS

<1%p44

Published

Aug 6, 2021 (Aug 6, 2021)

Modified

Jun 17, 2026

Description

A stored cross site scripting (XSS) vulnerability in /admin/snippets.php of GetSimple CMS 3.4.0a allows attackers to execute arbitrary web scripts or HTML via crafted payload in the Edit Snippets module.

Vendors: get-simple
Products: getsimplecms
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 (0.5%)

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