GetSimpleCMS-CE GetSimple CMS 3.3.22 Password Reset rand random values

Summaryinfo

A vulnerability was found in GetSimpleCMS-CE GetSimple CMS 3.3.22. It has been classified as problematic. The affected element is the function rand of the component Password Reset. The manipulation leads to random values. This vulnerability is documented as CVE-2026-53953. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in GetSimpleCMS-CE GetSimple CMS 3.3.22 and classified as problematic. This issue affects the function rand of the component Password Reset. The manipulation with an unknown input leads to a random values vulnerability. Using CWE to declare the problem leads to CWE-330. The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. Impacted is confidentiality. The summary by CVE is:

GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is the community edition of that CMS. In version 3.3.22, the password reset endpoint can be accessed without authentication. When a reset request is submitted for an existing user, the application generates a new temporary password and immediately stores its hash as the user's new password. The temporary password is generated using PHP rand() seeded with microtime(). Because this seed is time-based and has a limited effective search space, an attacker can generate possible reset password candidates. Since the admin login endpoint does not enforce rate limiting or account lockout, these candidates can be tested online until the correct password is found. Successful exploitation may lead to administrator account takeover. At time of publication, there are no publicly available patches.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-53953 since 06/11/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Content Management System

Vendor

• GetSimpleCMS-CE

Name

• GetSimple CMS

Version

• 3.3.22

License

• free

CPE 2.3info

• 🔒

CPE 2.2info

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