VULNERABILITY INTELLIGENCE

CVE-2020-21494

CVSS score6.1 MEDIUM

EPSS probability0.69%

CISA KEVNot currently listed

Published2021-10-04

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

A cross-site scripting (XSS) vulnerability in the component install\install.sql of Xiuno BBS 4.0.4 allows attackers to execute arbitrary web scripts or HTML via changing the doctype value to 0.

Weakness classification

nvd@nist.gov: CWE-79

Primary references

cve@mitre.org — Issue Tracking, Third Party Advisory
cve@mitre.org — Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Third Party Advisory