MCCMS v2.7.0 has an SSRF vulnerability located in the index() method of the sys\apps\controllers\api\Gf.php file, where the pic parameter is processed. The pic parameter is decrypted using the sys_auth($pic, 1) function, which utilizes a hard-coded key Mc_Encryption_Key (bD2voYwPpNuJ7B8), defined in the db.php file. The decrypted URL is passed to the geturl() method, which uses cURL to make a request to the URL without proper security checks. An attacker can craft a malicious encrypted pic parameter, which, when decrypted, points to internal addresses or local file paths (such as http://127.0.0.1 or file://). By using the file:// protocol, the attacker can access arbitrary files on the local file system (e.g., file:///etc/passwd, file:///C:/Windows/System32/drivers/etc/hosts), allowing them to read sensitive configuration files, log files, and more, leading to information leakage or system exposure. The danger of this SSRF vulnerability includes accessing internal services and local file systems through protocols like http://, ftp://, and file://, which can result in sensitive data leakage, remote code execution, privilege escalation, or full system compromise, severely affecting the system's security and stability.
CVSS Score
6.5
EPSS Score
0.001
Published
2025-08-06
An authenticated arbitrary file download vulnerability in the component /admin/Backups.php of Mccms v2.7.0 allows attackers to download arbitrary files via a crafted GET request.
CVSS Score
5.5
EPSS Score
0.0
Published
2025-07-14
A vulnerability was found in chshcms mccms 2.7. It has been classified as critical. This affects the function index of the file sys/apps/controllers/api/Gf.php. The manipulation of the argument pic leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score
6.3
EPSS Score
0.0
Published
2025-05-29
A vulnerability was found in chshcms mccms 2.7. It has been declared as critical. This vulnerability affects the function restore_del of the file /sys/apps/controllers/admin/Backups.php. The manipulation of the argument dirs leads to path traversal. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score
5.4
EPSS Score
0.001
Published
2025-05-29