CVE-2022-39241 - CVE House
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Status published High CVE-2022-39241

Possible Server-Side Request Forgery (SSRF) in webhooks

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2025-68934
Discourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint
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CVE-2025-68933
Discourse non-admin moderators can exfiltrate private content via post ownership transfer
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CVE-2025-68666
Discourse users archives leaked to users with moderation privileges
Medium 5.9

Affected Vendor

Affected Software

discourse
Vulnerable Versions:
<= 2.8.9, <= 2.9.0.beta10

Timeline

Official Publish: November 2nd, 2022
Last Modified: April 23rd, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

Weaknesses (CWE)

CWE-918

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1213 Data from Information Repositories
Collection
T1005 Data from Local System
Collection
T1046 Network Service Discovery
Discovery