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DoS via post edit reason

Moderate
jomaxro published GHSA-pjv6-47x6-mx7c Jul 28, 2023

Package

Discourse

Affected versions

stable <= 3.0.5; beta <= 3.1.0.beta6; tests-passed <= 3.1.0.beta6

Patched versions

stable > 3.0.5; beta > 3.1.0.beta6; tests-passed > 3.1.0.beta6

Description

Impact

A malicious user can edit a post in a topic and cause a DoS with a carefully crafted edit reason.

Patches

The issue is patched in the latest stable, beta and tests-passed version of Discourse.

Workarounds

There are no workarounds for this vulnerability. Please upgrade as soon as possible.

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
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVE ID

CVE-2023-37906

Weaknesses

No CWEs