PT-2025-52834 · Cmsimple · Cmsimple

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CVE-2021-47734

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Published

2025-12-23

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Updated

2025-12-23

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions CMSimple version 5.4
Description CMSimple version 5.4 contains a flaw that allows attackers to manipulate PHP session files and potentially execute arbitrary code. This is possible through an authenticated local file inclusion, where attackers can change the functions file path and upload malicious PHP code via session file upload mechanisms.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Weakness Enumeration

Related Identifiers

CVE-2021-47734

Affected Products

Cmsimple