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).
References
| Link | Resource |
|---|---|
| https://github.com/discourse/discourse/security/advisories/GHSA-w5mv-4pjf-xj43 | Mitigation Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
28 Apr 2023, 03:50
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Discourse discourse
Discourse |
|
| References | (MISC) https://github.com/discourse/discourse/security/advisories/GHSA-w5mv-4pjf-xj43 - Mitigation, Third Party Advisory | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.4 |
| CPE | cpe:2.3:a:discourse:discourse:3.1.0:beta2:*:*:beta:*:*:* cpe:2.3:a:discourse:discourse:3.1.0:beta1:*:*:beta:*:*:* cpe:2.3:a:discourse:discourse:3.1.0:beta3:*:*:beta:*:*:* cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:* |
18 Apr 2023, 22:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2023-04-18 22:15
Updated : 2023-12-10 15:01
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')