Riskcovery

CVE-2023-28111

Discourse vulnerable to SSRF protection bypass possible with IPv4-mapped IPv6 addresses

State
Published
Severity
5.7 Medium
Published
Mar 17, 2023
Updated
Feb 25, 2025
Reserved
Mar 10, 2023

Read the record on cve.org

Description

Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the `beta` and `tests-passed` branches, attackers are able to bypass Discourse's server-side request forgery (SSRF) protection for private IPv4 addresses by using a IPv4-mapped IPv6 address. The issue is patched in the latest beta and tests-passed version of Discourse. version 3.1.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.

Scores

CVSSScoreVectorSource
3.15.7 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:NGitHub_M

Weaknesses

  • CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

ProductVersions
discoursediscourse
  • beta < 3.1.0.beta3Affected
  • tests-passed < 3.1.0.beta3Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.