CVE-2022-39241
Possible Server-Side Request Forgery (SSRF) in webhooks
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Possible Server-Side Request Forgery (SSRF) in webhooks
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.
- Record
CVE-2022-39241- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
EUVDEUVD-2022-41763
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.
- Record
EUVD-2022-41763- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N - Updated
- 2026-11-02
NVD
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.
- Record
CVE-2022-39241- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N - CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
OSV
Possible Server-Side Request Forgery (SSRF) in webhooks
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.
- Record
CVE-2022-39241- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
OSVBIT-discourse-2022-39241 No score
Possible Server-Side Request Forgery (SSRF) in webhooks
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.
- Record
BIT-discourse-2022-39241- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
discourseBitnami |
before 2.8.10 | 2.8.10 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-39241 is a high vulnerability (CVSS 7.6) in Discourse, published November 2, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.65%, the 51st percentile. Fixed in discourse 2.8.10.