CVE-2026-7044: GreenCMS index.php themeadd unrestricted upload

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-26 · updated 2026-06-17
Weakness: CWE-284

Description

A vulnerability was found in GreenCMS up to 2.3. Affected is the function themeadd of the file /index.php?m=admin&c=custom&a=themeadd. The manipulation results in unrestricted upload. The attack can be launched remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

GreenCMS: 2.0, 2.1, 2.2, 2.3

References

https://github.com/ueh1013/VULN/issues/21
https://vuldb.com/submit/798530
https://vuldb.com/vuln/359623
https://vuldb.com/vuln/359623/cti

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