CVE-2021-36440

CRITICAL

ShowDoc v2.9.5 - RCE

Title source: llm
STIX 2.1

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'.

References (1)

Core 1
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/star7th/showdoc/issues/1406

Scores

CVSS v3 9.8
EPSS 0.3681
EPSS Percentile 97.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-434
Status published
Products (2)
showdoc/showdoc 2.9.5
showdoc/showdoc 0 - 2.9.6Packagist
Published Sep 08, 2021
Tracked Since Feb 18, 2026