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Grav CMS Local File Injection

Moderate severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Apr 24, 2024

Package

composer getgrav/grav (Composer)

Affected versions

>= 1.7.0-beta.1, <= 1.7.0-rc.17
< 1.6.30

Patched versions

1.6.30

Description

The Backup functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to read arbitrary local files on the underlying server by exploiting a path-traversal technique. (This vulnerability can also be exploited by an unauthenticated attacker due to a lack of CSRF protection.)

References

Published by the National Vulnerability Database Mar 15, 2021
Published to the GitHub Advisory Database May 24, 2022
Reviewed Apr 24, 2024
Last updated Apr 24, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.044%
(12th percentile)

Weaknesses

CVE ID

CVE-2020-29556

GHSA ID

GHSA-r3rg-jrjq-w4mr

Source code

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