CVE-2021-47733

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

CMSimple 5.4 contains a cross-site scripting vulnerability that allows attackers to bypass input filtering by using HTML to Unicode encoding. Attackers can inject malicious scripts by encoding payloads like ')-alert(1)// and execute arbitrary JavaScript when victims interact with delete buttons.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published
Dec 23, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2021-47733: Medium severity, CVSS 6.1 | Vulnix