Discourse up to 3.2.4/3.3.0.beta4 Setting allowed_iframes injection

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Discourse up to 3.2.4/3.3.0.beta4. Affected by this vulnerability is an unknown functionality of the component Setting Handler. This manipulation of the argument allowed_iframes causes injection. This vulnerability appears as CVE-2024-39320. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Discourse up to 3.2.4/3.3.0.beta4 and classified as problematic. Affected by this vulnerability is some unknown functionality of the component Setting Handler. The manipulation of the argument allowed_iframes with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect integrity. The summary by CVE is:

Discourse is an open source discussion platform. Prior to 3.2.5 and 3.3.0.beta5, the vulnerability allows an attacker to inject iframes from any domain, bypassing the intended restrictions enforced by the allowed_iframes setting. This vulnerability is fixed in 3.2.5 and 3.3.0.beta5.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2024-39320 since 06/21/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

Upgrading to version 3.2.5 or 3.3.0.beta5 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 6.1
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: Injection
CWE: CWE-74 / CWE-707 / CWE-20
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 3.2.5/3.3.0.beta5

Timelineinfo

06/21/2024 🔍
07/30/2024 +39 days 🔍
07/30/2024 +0 days 🔍
03/16/2025 +229 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2024-39320 (🔍)
GCVE (CVE): GCVE-0-2024-39320
GCVE (VulDB): GCVE-100-273163

Entryinfo

Created: 07/30/2024 17:16
Updated: 03/16/2025 11:49
Changes: 07/30/2024 17:16 (63), 07/31/2024 19:55 (1), 09/12/2024 02:29 (12), 03/16/2025 11:49 (4)
Complete: 🔍
Cache ID: 216::103

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