TI-2026-71129 Aliases CVE-2026-109313 GHSA-mp6q-9gmf-c5j2

Two-factor authentication bypass in Grav Login plugin via remember-me cookie

LOW 39CWE-287Published 2026-10-12 · Updated 2026-10-13

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

Grav Login plugin from 2.7.0 before 3.9.9 contains an authentication bypass that lets attackers skip two-factor authentication. An attacker with a valid password obtains a persistent remember-me cookie after the password step and restores it as a fully authorized session without completing the second factor. The attacker needs only low privileges and no user interaction over the network.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass vulnerability that allows attackers with a valid password to skip two-factor authentication through remember-me cookie restoration. Attackers can obtain a persistent remember-me cookie after the password step and restore it as a fully authorized session without completing the second factor.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00351 28th percentileScored 2026-11-07

Fix Fixed grav-plugin-login (getgrav): 3.9.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
getgrav	grav-plugin-login	2.7.0 to before 3.9.9	3.9.9	Patch available	CNA

grav-plugin-login Vendorgetgrav Affected 2.7.0 to before 3.9.9 Fixed in 3.9.9 Patch available CNA

Remediation

Update getgrav grav-plugin-login to version 3.9.9.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA grav-plugin-login (getgrav) Fixed in 3.9.9

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-12
getgrav grav-plugin-login 3.9.9
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-71128 Authentication bypass in Grav Login plugin skips 2FA checksPriority LOW 39
- TI-2026-71130 Password reset token disclosure in Grav Login plugin via reset pagePriority LOW 37
Show all 3 records →

Timeline

2026-10-12 Threatist record created from CVE-2026-109313
2026-10-12 Alias added: GHSA-mp6q-9gmf-c5j2
2026-10-13 CISA SSVC decision points changed
2026-10-13 Priority changed: MEDIUM → LOW

References

Advisory 1

GitHub Security Advisory (GHSA-cmg5-qw8p-gxcf)

TI-2026-30893 Grav: Privilege Escalation via Missing Server-Side Validation of groups/access CVSS 3.1CRITICAL 9.4
TI-2025-28971 Cross Site Scripting vulnerability in grav v.1.7.48 and before allows an attacker to… CVSS 3.1CRITICAL 9.8
TI-2021-04523 Unauthenticated Arbitrary YAML Write/Update leads to Code Execution CVSS 3.1CRITICAL 9.8
TI-2026-50940 Grav CMS before 2.0.16 Origin Validation Bypass via Referer CVSS 4.0CRITICAL 9.3
TI-2026-46446 Grav before 2.0.7 Remote Code Execution via Blueprint dynamicData CVSS 4.0CRITICAL 9.3
TI-2021-22428 GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2) CVSS 4.0CRITICAL 9.3

See all 228 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences