CVE-2026-100670
published 2026-09-26CVE-2026-100670: Grav CMS 2.0.14 through 2.0.24 contains a privilege escalation vulnerability in the group and account blueprints. The access map is gated by a `security@…
PriorityP260high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
0.30%
21.0th percentile
Grav CMS 2.0.14 through 2.0.24 contains a privilege escalation vulnerability in the group and account blueprints. The access map is gated by a `security@: admin.super` guard that is resolved by the field's exact path, so a submitted flat dot-notation key such as `access.admin.super` (instead of the nested `access[admin][super]`) matches no blueprint rule, survives BlueprintSchema::filterArray() and flattening, and is written by FlexObject::update() via setNestedProperty(), which splits on `.` and reconstructs the nested value. An authenticated backend operator using the flex accounts backend who holds admin.users but not admin.super can therefore grant admin.super to their own account or to a group they belong to and escalate to full super-admin, gaining control over configuration, plugin and theme installation, the file manager, and all accounts. Fixed in 2.0.25, which drops any dotted key whose ancestor path is disabled or marked validate.ignore.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| getgrav | grav | < 2.0.25 | 2.0.25 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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VulDB
getgrav Grav up to 2.0.24 Blueprint FlexObject::update access.admin.super privileges management
vuldb·2026-09-26·CVSS 8.8
CVE-2026-100670 [HIGH] getgrav Grav up to 2.0.24 Blueprint FlexObject::update access.admin.super privileges management
A vulnerability, which was classified as problematic, was found in getgrav Grav up to 2.0.24. Impacted is the function FlexObject::update of the component Blueprint. Executing a manipulation of the argument access.admin.super can lead to improper privilege management.
The identification of this vulnerability is CVE-2026-100670. The attack may be launched remotely. There is no exploit available.
You should upgrade the affected component.
GHSA
Grav CMS 2.0.14 through 2.0.24 contains a privilege escalation vulnerability in the group and account blueprints.
ghsa_unreviewed·2026-09-26
CVE-2026-100670 [HIGH] CWE-639 Grav CMS 2.0.14 through 2.0.24 contains a privilege escalation vulnerability in the group and account blueprints.
Grav CMS 2.0.14 through 2.0.24 contains a privilege escalation vulnerability in the group and account blueprints. The access map is gated by a `security@: admin.super` guard that is resolved by the field's exact path, so a submitted flat dot-notation key such as `access.admin.super` (instead of the nested `access[admin][super]`) matches no blueprint rule, survives BlueprintSchema::filterArray() and flattening, and is written by FlexObject::update() via setNestedProperty(), which splits on `.` and reconstructs the nested value. An authenticated backend operator using the flex accounts backend who holds admin.users but not admin.super can therefore grant admin.super to their own account or to a group they belong to and escalate to full super-admin, gaining control over configuration, plugin
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-26
Published