CVE-2026-42609HIGH 8.1EPSS p36.5%
CVE-2026-42609CVE-2026-42609
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.
Scoring
| CVSS 3.1 | 8.1 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| EPSS | 0.46% probability of exploitation · percentile 36.5% · 2026-06-18T12:00:27Z |
| Published | 2026-05-11 |
| Last modified | 2026-05-14 |
Underlying weaknesses· 4
References
- https://github.com/getgrav/grav/commit/5a12f9be8314682c8713e569e330f11805d0a663
- https://github.com/getgrav/grav/commit/c66dfeb5ff679a1667678c6335eb9ff3255dfc47
- https://github.com/getgrav/grav/commit/d904efc33e03ebb597afde8d3368b28cf0423632
- https://github.com/getgrav/grav/security/advisories/GHSA-rr73-568v-28f8
- https://github.com/getgrav/grav/security/advisories/GHSA-rr73-568v-28f8
4
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Improper Privilege Managementcwe-269 | 0% | live |
| Weakness | Improper Authorizationcwe-285 | 0% | live |
| Weakness | Authorization Bypass Through User-Controlled Keycwe-639 | 0% | live |
| Weakness | Improper Enforcement of a Single, Unique Actioncwe-837 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.