CVE-2020-20977

PoC —

CVSS 3.1

5.4 medium

EPSS

<1%p42

Published

Aug 12, 2021 (Aug 12, 2021)

Modified

Jun 17, 2026

Description

A stored cross site scripting (XSS) vulnerability in index.php/legend/6.html of UK CMS v1.1.10 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the Comments section.

Vendors: ukcms
Products: ukcms
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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