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.
References (4)
Core 4
Core References
Third Party Advisory third-party-advisory
Submit #798530 | https://github.com/GreenCMS/GreenCMS GreenCMS v2.3 arbitrary file deletion
https://vuldb.com/submit/798530
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-359623 | GreenCMS index.php themeadd unrestricted upload
https://vuldb.com/vuln/359623
Signature, Permissions Required signature
permissions-required
VDB-359623 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/359623/cti
Exploit exploit
issue-tracking
https://github.com/ueh1013/VULN/issues/21
Scores
CVSS v3
6.3
EPSS
0.0020
EPSS Percentile
10.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-284
CWE-434
Status
published
Products (4)
None/GreenCMS
2.0
None/GreenCMS
2.1
None/GreenCMS
2.2
None/GreenCMS
2.3
Published
Apr 26, 2026
Tracked Since
Apr 26, 2026