[20250301] - Core - Malicious file uploads via Media Manager

published 2025-03-11 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-7602

cvss: 7.1; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits: 0; none known

Inadequate checks in the Media Manager allowed users with "edit" privileges to change file extension to arbitrary extension, including .php and other potentially executable extensions.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 19 mo ago (2025-03-11)

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.1	CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/AU:N
CNA	4.0	7.1	CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:X/V:X/RE:X/U:X

Affected products

Joomla! Project Joomla! CMS

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type

References

developer.joomla.org /security-centre/961-20250301-core-malicious-file-uploads-via-media-managere-malicious-file-uploads-via-media-
vendor-advisory

Sources

CVE List CVE-2025-22213
NVD CVE-2025-22213

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary