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CVE-2024-56197— Users can see other user's tagged PMs in Discourse

Quick assessment

Affected

discourse discourse

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Discourse是Discourse开源的一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse存在信息泄露漏洞，该漏洞源于当启用了允许为组添加PM标签的选项时，其他也是加入了此选项的组成员的用户可以读取私信标题和元数据。

CVSS 2.2 · Low EPSS 0.36% · P29 Updated Feb 05, 2025

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

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I. Basic Information for CVE-2024-56197

Vulnerability Information

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Vulnerability Title

Users can see other user's tagged PMs in Discourse

Source: CVE Program / CVE List V5

Vulnerability Description

Discourse is an open source platform for community discussion. PM titles and metadata can be read by other users when the "PM tags allowed for groups" option is enabled, the other user is a member of a group added to this option, and the PM has been tagged. This issue has been patched in the latest `stable`, `beta` and `tests-passed` versions of Discourse. Users are advised to upgrade. Users unable to upgrade should remove all groups from the the "PM tags allowed for groups" option.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

信息暴露

Source: CVE Program / CVE List V5

Vulnerability Title

Discourse 信息泄露漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
discourse	discourse	stable: <= 3.3.3	-

II. Public POCs for CVE-2024-56197

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2024-56197

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Vendor Advisories for CVE-2024-56197 (1)

Users can see other user's tagged PMs · Advisory · discourse/discourse · GitHub x_refsource_CONFIRM

https://www.cve.org/CVERecord?id=CVE-2024-56197

Same Patch Batch · discourse · 2025-02-04 · 9 CVEs total

CVE-2024-55948	8.2 HIGH	Anonymous cache poisoning via XHR requests in Discourse
CVE-2025-23023	8.2 HIGH	Anonymous cache poisoning via request headers in Discourse
CVE-2024-56328	6.5 MEDIUM	HTMLi(XSS without CSP) via Onebox urls in Discourse
CVE-2025-22602	6.5 MEDIUM	Stored DOM-based XSS (without CSP) via video placeholders in Discourse
CVE-2024-53266	4.3 MEDIUM	Cross-site Scripting (XSS) via topic titles when CSP disabled in Discourse
CVE-2024-53851	4.3 MEDIUM	Partial denial of service via inline oneboxes in Discourse
CVE-2024-53994	4.3 MEDIUM	Potential bypass of chat permissions in Discourse
CVE-2025-22601	3.1 LOW	Client Side Path Traversal using activate account route in Discourse

IV. Related Vulnerabilities

Same product: discourse

Same vendor: discourse

Same weakness: CWE-200