CVE-2023-30538

Discourse is an open source platform for community discussion. Due to the improper sanitization of SVG files, an attacker can execute arbitrary JavaScript on the users’ browsers by uploading a crafted SVG file. This issue is patched in the latest stable and tests-passed versions of Discourse. Users are advised to upgrade. For users unable to upgrade there are two possible workarounds: enable CDN handing of uploads (and ensure the CDN sanitizes SVG files) or disable SVG file uploads by ensuring that the `authorized extensions` site setting does not include `svg` (or reset that setting to the default, by default Discourse doesn't enable SVG uploads by users).

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/discourse/discourse/security/advisories/GHSA-w5mv-4pjf-xj43	Mitigation Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-w5mv-4pjf-xj43	Mitigation Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:discourse:discourse:::::stable:::*
	cpe:2.3:a:discourse:discourse:::::beta:::*
	cpe:2.3:a:discourse:discourse:3.1.0:beta1:::beta:::*
	cpe:2.3:a:discourse:discourse:3.1.0:beta2:::beta:::*
	cpe:2.3:a:discourse:discourse:3.1.0:beta3:::beta:::*

History

21 Nov 2024, 08:00

Type	Values Removed	Values Added
References	~~() https://github.com/discourse/discourse/security/advisories/GHSA-w5mv-4pjf-xj43 - Mitigation, Third Party Advisory~~	() https://github.com/discourse/discourse/security/advisories/GHSA-w5mv-4pjf-xj43 - Mitigation, Third Party Advisory

Information

Published : 2023-04-18 22:15

Updated : 2024-11-21 08:00

NVD link : CVE-2023-30538

Mitre link : CVE-2023-30538

CVE.ORG link : CVE-2023-30538

JSON object : View

Products Affected

discourse

discourse

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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