CVE-2026-72700

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/getgrav/grav/security/advisories/GHSA-x239-6jqx-5hjh
https://www.vulncheck.com/advisories/grav-before-timing-attack-via-non-constant-time-token-comparison
https://github.com/getgrav/grav/security/advisories/GHSA-x239-6jqx-5hjh

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-25 02:16

Updated : 2026-09-16 13:42

NVD link : CVE-2026-72700

Mitre link : CVE-2026-72700

CVE.ORG link : CVE-2026-72700

JSON object : View

Products Affected

No product.

CWE

CWE-208

Observable Timing Discrepancy

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