SSRF in Discourse
CVE-2023-28111
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.006 (43.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Discourse — versions tests-passed < 3.1.0.beta3, beta < 3.1.0.beta3, 3.1.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-28111?
- CVE-2023-28111 is a medium-severity vulnerability in Discourse, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.7/10. Published 2023-03-17.
- How severe is CVE-2023-28111?
- Medium severity. CVSS v3 base score is 5.7 out of 10.