| Title | https://github.com/GreenCMS/GreenCMS GreenCMS v2.3 arbitrary file deletion |
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| Description | The /CustomController.class.php file in greencms v2.3 contains a file upload vulnerability. This flaw arises from the pluginAddLocal method's failure to validate uploaded files. Attackers can access the /index.php?m=admin&c=custom&a=pluginadd page to upload compressed files containing webshells. The system automatically decompresses these files into the website's root directory, allowing malicious files to be implanted. Using tools like Godzilla, attackers can exploit the implanted webshell to connect to target servers, gain control, and cause severe security risks such as data breaches and server tampering. |
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| Source | ⚠️ https://github.com/ueh1013/VULN/issues/7 |
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| User | R21Z20 (UID 97129) |
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| Submission | 04/07/2026 05:49 (21 days ago) |
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| Moderation | 04/25/2026 18:01 (19 days later) |
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| Status | Accepted |
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| VulDB entry | 359622 [GreenCMS up to 2.3 index.php?m=admin&c=custom&a=pluginadd pluginAddLocal unrestricted upload] |
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| Points | 20 |
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