CVE-2021-39161

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Summary

CVECVE-2021-39161
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-26 20:15:00 UTC
Updated2021-09-01 16:58:00 UTC
DescriptionDiscourse is an open source platform for community discussion. In affected versions category names can be used for Cross-site scripting(XSS) attacks. This is mitigated by Discourse's default Content Security Policy and this vulnerability only affects sites which have modified or disabled or changed Discourse's default Content Security Policy have allowed for moderators to modify categories. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. Users are advised to 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.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Discourse Discourse All All All All
Application Discourse Discourse 2.8.0 beta1 All All
Application Discourse Discourse 2.8.0 beta2 All All
Application Discourse Discourse 2.8.0 beta3 All All
Application Discourse Discourse 2.8.0 beta4 All All

References

ReferenceSourceLinkTags
XSS via category name · Advisory · discourse/discourse · GitHub CONFIRM github.com
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