VULNERABILITY INTELLIGENCE

CVE-2021-36440

CVSS score9.8 CRITICAL

EPSS probability4.76%

CISA KEVNot currently listed

Published2021-09-08

Last modified2026-06-17

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

Description

Unrestricted File Upload in ShowDoc v2.9.5 allows remote attackers to execute arbitrary code via the 'file_url' parameter in the component AdminUpdateController.class.php'.

Weakness classification

nvd@nist.gov: CWE-434

Primary references

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