CVE-2021-37633
In versions prior to 2.7.8 rendering of d-popover tooltips can be susceptible to XSS attacks.
Does this matter?
Lower severity and a low EPSS score (0.76%). Track it; it rarely justifies an emergency change on its own.
Description
Discourse is an open source discussion platform. In versions prior to 2.7.8 rendering of d-popover tooltips can be susceptible to XSS attacks. This vulnerability only affects sites which have modified or disabled Discourse's default Content Security Policy. This issue is patched in the latest `stable` 2.7.8 version of Discourse. As a workaround users may 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 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.76% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- discourse/discourse
- Source
- security-advisories@github.com
References
- https://github.com/discourse/discourse/commit/38199424bc840d2ef002cd1e9bffdbb99191eb47Patch, Third Party Advisory
- https://github.com/discourse/discourse/security/advisories/GHSA-v3v8-3m5w-pjp9Third Party Advisory
- https://github.com/discourse/discourse/commit/38199424bc840d2ef002cd1e9bffdbb99191eb47Patch, Third Party Advisory
- https://github.com/discourse/discourse/security/advisories/GHSA-v3v8-3m5w-pjp9Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.