| CVE-2021-32764 | Date: (C)2021-07-16 (M)2023-12-22 |
Discourse is an open-source discussion platform. In Discourse versions 2.7.5 and prior, parsing and rendering of YouTube Oneboxes can be susceptible to XSS attacks. This vulnerability only affects sites which have modified or disabled Discourse's default Content Security Policy. The issue is patched in `stable` version 2.7.6, `beta` version 2.8.0.beta3, and `tests-passed` version 2.8.0.beta3. As a workaround, ensure that the Content Security Policy is enabled, and has not been modified in a way which would make it more vulnerable to XSS attacks.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V3 Severity: | CVSS V2 Severity: |
| CVSS Score : 5.4 | CVSS Score : 3.5 |
| Exploit Score: 2.8 | Exploit Score: 6.8 |
| Impact Score: 2.5 | Impact Score: 2.9 |
| |
| CVSS V3 Metrics: | CVSS V2 Metrics: |
| Attack Vector: NETWORK | Access Vector: NETWORK |
| Attack Complexity: LOW | Access Complexity: MEDIUM |
| Privileges Required: LOW | Authentication: SINGLE |
| User Interaction: NONE | Confidentiality: NONE |
| Scope: UNCHANGED | Integrity: PARTIAL |
| Confidentiality: LOW | Availability: NONE |
| Integrity: LOW | |
| Availability: NONE | |
| | |
