// For flags

CVE-2023-28111

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

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-03-10 CVE Reserved
  • 2023-03-17 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-08-27 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-918: Server-Side Request Forgery (SSRF)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Discourse
Search vendor "Discourse"
Discourse
Search vendor "Discourse" for product "Discourse"
< 3.1.0
Search vendor "Discourse" for product "Discourse" and version " < 3.1.0"
beta
Affected
Discourse
Search vendor "Discourse"
Discourse
Search vendor "Discourse" for product "Discourse"
3.1.0
Search vendor "Discourse" for product "Discourse" and version "3.1.0"
beta1, beta
Affected
Discourse
Search vendor "Discourse"
Discourse
Search vendor "Discourse" for product "Discourse"
3.1.0
Search vendor "Discourse" for product "Discourse" and version "3.1.0"
beta2, beta
Affected