CVE-2026-56710

CRITICAL 9.8

Grav Login Plugin before 1.0.16 Privilege Escalation via Unlock

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

Grav Login plugin versions before 1.0.16 fail to validate the target account's privilege level in the onApiUserListRowAction unlock handler. An attacker with api.users.write permission can clear login lockout counters on admin.super accounts, removing brute-force protection from the highest-privilege accounts without requiring equivalent permissions.

CWE	CWE-863
Vendor	getgrav
Product	grav
Published	Aug 25, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

getgrav / grav

0 < 1.0.16

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/getgrav/grav/security/advisories/GHSA-985r-mpj8-5rqw vulncheck.com: https://www.vulncheck.com/advisories/grav-login-plugin-before-privilege-escalation-via-unlock

Credits

🔍 alham-rizvi