CVE-2024-58280 | BDVDB-2026-305138 Detail

CMSimpleCMSimple

Description#

CMSimple 5.15 contains a remote command execution vulnerability that allows authenticated attackers to modify file extensions and upload malicious PHP files. Attackers can append ',php' to Extensions_userfiles and upload a shell script to the media directory to execute arbitrary code on the server.

Impact#

Per CVSS v4.0: confidentiality impact high, integrity impact high, availability impact none. Attack vector: network.

Weaknesses#

CWE-403 Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak')

References#

Exploit#

https://www.exploit-db.com/exploits/52040

History#

Version 12025-12-10Record published in the CVE List.
Version 22026-04-07Most recent update recorded in the CVE List.

Published

Published: 2025-12-10
Last modified: 2026-04-07

Vendor information

Vendor: CMSimple
Product: CMSimple

All CMSimple vulnerabilities

Score

8.6 High

EPSS

1.0%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 63.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
5.15
Fixed
Not stated

Scoring System

CVSS v4.0

8.6 High

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	Low
User Interaction	None
Vulnerable System Confidentiality	High
Vulnerable System Integrity	High
Vulnerable System Availability	None
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).