CVE-2026-42609
Last modified
CVE-2026-42609 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a business logic vulnerability in the Grav Admin Panel allows a low-privileged user (with only user creation permissions) to overwrite existing accounts, including the primary administrator. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
Description
Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a business logic vulnerability in the Grav Admin Panel allows a low-privileged user (with only user creation permissions) to overwrite existing accounts, including the primary administrator. By creating a new user with a username that already exists, the system updates the existing account's metadata and permissions instead of rejecting the request. This leads to a Denial of Service (DoS) on administrative functions and Privilege De-escalation of the root account. This vulnerability is fixed in 2.0.0-beta.2.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Getgrav | Grav | <= 1.8.0 | — |
| Getgrav | Grav | 2.0.0 | Beta1 |
References
- https://github.com/getgrav/grav/security/advisories/GHSA-rr73-568v-28f8Exploit, Patch, Vendor Advisory
- https://github.com/getgrav/grav/security/advisories/GHSA-rr73-568v-28f8Exploit, Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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