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Case File

CVE-2020-20977

MEDIUM · CVSS 5.4 EPSS 0.50% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-12 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.4. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-20977
Severity
MEDIUM
CVSS
5.4
EPSS
0.50%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)