CVE-2022-39226

MEDIUM

Discourse < 2.8.9 - Improper Input Validation

Title source: rule
STIX 2.1

Description

Discourse is an open source discussion platform. In versions prior to 2.8.9 on the `stable` branch and prior to 2.9.0.beta10 on the `beta` and `tests-passed` branches, a malicious actor can add large payloads of text into the Location and Website fields of a user profile, which causes issues for other users when loading that profile. A fix to limit the length of user input for these fields is included in version 2.8.9 on the `stable` branch and version 2.9.0.beta10 on the `beta` and `tests-passed` branches. There are no known workarounds.

References (3)

Core 3

Scores

CVSS v3 4.3
EPSS 0.0053
EPSS Percentile 67.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-770 CWE-20
Status published
Products (2)
discourse/discourse 2.9.0 beta1 (9 CPE variants)
discourse/discourse < 2.8.9
Published Sep 29, 2022
Tracked Since Feb 18, 2026