8.8

CVE-2025-66296: getgrav grav Incorrect Privilege Assignment

CVSS: 8.8v3.1HighAnalyzed
Published 01-12-2025Last modified 02-12-2025
Open JSON

Vulnerability summary

CVE-2025-66296 is a high (CVSS 8.8) Incorrect Privilege Assignment vulnerability in getgrav grav. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.2% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.32%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 01-12-2025
    PublishedVulnerability first disclosed.
  2. 02-12-2025
    Last modifiedVulnerability information updated.

Description

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a privilege escalation vulnerability exists in Grav’s Admin plugin due to the absence of username uniqueness validation when creating users. A user with the create user permission can create a new account using the same username as an existing administrator account, set a new password/email, and then log in as that administrator. This effectively allows privilege escalation from limited user-manager permissions to full administrator access. This vulnerability is fixed in 1.8.0-beta.27.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

0.00 pp

From 0.32% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Getgrav1 product
  • grav< 1.8.0-beta.27 | ≥ 1.7.49.5, < 1.8.0 | 1.8.0:beta1 | 1.8.0:beta10 | 1.8.0:beta11 | 1.8.0:beta12 | 1.8.0:beta13 | 1.8.0:beta14 | 1.8.0:beta15 | 1.8.0:beta16 | 1.8.0:beta17 | 1.8.0:beta18 | 1.8.0:beta19 | 1.8.0:beta2 | 1.8.0:beta20 | 1.8.0:beta21 | 1.8.0:beta22 | 1.8.0:beta23 | 1.8.0:beta24 | 1.8.0:beta25 | 1.8.0:beta26 | 1.8.0:beta3 | 1.8.0:beta4 | 1.8.0:beta5 | 1.8.0:beta6 | 1.8.0:beta7 | 1.8.0:beta8 | 1.8.0:beta9

1 vendor · 1 product

References

2 links