Vulnerability Details : CVE-2022-39241
Discourse is a platform for community discussion. A malicious admin could use this vulnerability to perform port enumeration on the local host or other hosts on the internal network, as well as against hosts on the Internet. Latest `stable`, `beta`, and `test-passed` versions are now patched. As a workaround, self-hosters can use `DISCOURSE_BLOCKED_IP_BLOCKS` env var (which overrides `blocked_ip_blocks` setting) to stop webhooks from accessing private IPs.
Vulnerability category: Server-side request forgery (SSRF)
Products affected by CVE-2022-39241
- cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta5:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta7:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta6:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta8:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta9:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta10:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-39241
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 23 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-39241
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
1.2
|
3.6
|
NIST | |
|
7.6
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N |
2.3
|
4.7
|
GitHub, Inc. |
CWE ids for CVE-2022-39241
-
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2022-39241
-
https://github.com/discourse/discourse/security/advisories/GHSA-rcc5-28r3-23rr
Insufficient Server Side Request Forgery protections · Advisory · discourse/discourse · GitHubThird Party Advisory
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