Discourse up to 3.3.1/3.4.0.beta1 Chat Message cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Discourse up to 3.3.1/3.4.0.beta1. Affected by this vulnerability is an unknown functionality of the component Chat Message Handler. Executing a manipulation can lead to cross site scripting. This vulnerability is tracked as CVE-2024-47772. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Discourse up to 3.3.1/3.4.0.beta1. This vulnerability affects an unknown functionality of the component Chat Message Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

Discourse is an open source platform for community discussion. An attacker can execute arbitrary JavaScript on users' browsers by sending a maliciously crafted chat message and replying to it. This issue only affects sites with CSP disabled. This problem is patched in the latest version of Discourse. All users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled on the forum. Users who do upgrade should also consider enabling a CSP as well as a proactive measure.

The advisory is shared for download at github.com. This vulnerability was named CVE-2024-47772 since 09/30/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 3.3.2 or 3.4.0.beta2 eliminates this vulnerability.

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Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

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

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (GitHub_M): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Discourse 3.3.2/3.4.0.beta2

Timelineinfo

09/30/2024 🔍
10/08/2024 +8 days 🔍
10/08/2024 +0 days 🔍
03/08/2025 +151 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-67mh-xhmf-c56h
Status: Confirmed

CVE: CVE-2024-47772 (🔍)
GCVE (CVE): GCVE-0-2024-47772
GCVE (VulDB): GCVE-100-279532

Entryinfo

Created: 10/08/2024 06:56
Updated: 03/08/2025 09:25
Changes: 10/08/2024 06:56 (64), 10/11/2024 04:29 (1), 10/19/2024 03:25 (11), 03/08/2025 09:25 (4)
Complete: 🔍
Cache ID: 216::103

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