getgrav Grav up to 3.9.0 Password Reset classes/Controller.php taskReset timing discrepancy

Summaryinfo

A vulnerability categorized as problematic has been discovered in getgrav Grav up to 3.9.0. The affected element is the function taskReset of the file classes/Controller.php of the component Password Reset. Executing a manipulation can lead to timing discrepancy. This vulnerability is handled as CVE-2026-72700. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in getgrav Grav up to 3.9.0 and classified as problematic. This vulnerability affects the function taskReset of the file classes/Controller.php of the component Password Reset. The manipulation with an unknown input leads to a timing discrepancy vulnerability. The CWE definition for the vulnerability is CWE-208. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. As an impact it is known to affect confidentiality. CVE summarizes:

The getgrav/grav-plugin-login Composer plugin before 3.9.1 (used by Grav) compares password reset and account activation tokens using a non-constant-time === string comparison instead of hash_equals() in classes/Controller.php (taskReset()) and login.php (activation handler). Because the token-submission endpoint (taskReset) also lacks rate limiting, an attacker could in principle send repeated token guesses against a known username and use the timing differences to attempt to recover a valid token, though the vendor rates the practical exploitability as low and no end-to-end network exploit has been demonstrated.

The advisory is available at github.com. This vulnerability was named CVE-2026-72700 since 08/10/2026. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

By approaching the search of inurl:classes/Controller.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 3.9.1 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• getgrav

Name

• Grav

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9.0

Website

• Product: https://github.com/getgrav/grav/

CPE 2.3info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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