CVE-2022-46150
Discourse may allow exposure of hidden tags in the subject of notification emails
Discourse is an open-source discussion platform. Prior to version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches. As a workaround, use the disable_email site setting to disable all emails to non-staff users.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Discourse may allow exposure of hidden tags in the subject of notification emails
Discourse is an open-source discussion platform. Prior to version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches. As a workaround, use the disable_email site setting to disable all emails to non-staff users.
- Record
CVE-2022-46150- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2022-48985
Discourse is an open-source discussion platform. Prior to version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches. As a workaround, use the disable_email site setting to disable all emails to non-staff users.
- Record
EUVD-2022-48985- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
NVD
Discourse is an open-source discussion platform. Prior to version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches. As a workaround, use the disable_email site setting to disable all emails to non-staff users.
- Record
CVE-2022-46150- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
Discourse may allow exposure of hidden tags in the subject of notification emails
Discourse is an open-source discussion platform. Prior to version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches. As a workaround, use the disable_email site setting to disable all emails to non-staff users.
- Record
CVE-2022-46150- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSVBIT-discourse-2022-46150 No score
Discourse may allow exposure of hidden tags in the subject of notification emails
Discourse is an open-source discussion platform. Prior to version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches. As a workaround, use the disable_email site setting to disable all emails to non-staff users.
- Record
BIT-discourse-2022-46150- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
discourseBitnami |
before 2.8.13 | 2.8.13 |
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-2022-46150 is a medium vulnerability (CVSS 4.3) in Discourse, published November 29, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. Fixed in discourse 2.8.13.