High severity · published Mar 17, 2023
CVE-2023-28111
Discourse is an open-source discussion platform
7.5
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
Discourse · Discourse
before 3.1.0; 3.1.0; 3.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-28111
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-28111
Patch
https://github.com/discourse/discourse/commit/fd16eade7fcc6bba4b71e71106a2eb13cdfdae4a
Patch
https://github.com/discourse/discourse/pull/20710
Vendor Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-26h3-8ww8-v5fc
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