Discourse Private Message information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Discourse (version unknown). It has been rated as problematic. This issue affects an unknown function of the component Private Message Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

Discourse is the an open source discussion platform. In some rare cases users redeeming an invitation can be added as a participant to several private message topics that they should not be added to. They are not notified of this, it happens transparently in the background. This issue has been resolved in commit `a414520742` and will be included in future releases. Users are advised to upgrade. Users are also advised to set `SiteSetting.max_invites_per_day` to 0 until the patch is installed.

The weakness was published 11/15/2022 as GHSA-gh5r-j595-qx48. The advisory is shared at github.com. The identification of this vulnerability is CVE-2022-39385 since 09/02/2022. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Applying the patch a414520742da8dc9dc976d4fb7b72dbd445813bb is able to eliminate this problem. The bugfix is ready for download at github.com.




  • open-source

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (GitHub, Inc.): 🔒



VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: a414520742da8dc9dc976d4fb7b72dbd445813bb


09/02/2022 CVE reserved
11/15/2022 +74 days Advisory disclosed
11/15/2022 +0 days VulDB entry created
11/15/2022 +0 days VulDB last update


Advisory: GHSA-gh5r-j595-qx48
Status: Confirmed

CVE: CVE-2022-39385 (🔒)


Created: 11/15/2022 08:34 AM
Changes: 11/15/2022 08:34 AM (50)
Complete: 🔍


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