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Discourse 2.8.0 <= 2.8.0.beta6 XSS Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Discourse is prone to a cross-site scripting (XSS) vulnerability.
Insight
Insight
Rendering of some error messages that contain user input can be susceptible to XSS attacks. This vulnerability only affects sites which have blocked watched words that contain HTML tags, modified or disabled Discourse's default Content Security Policy.
Affected Software
Affected Software
Discourse version 2.8.0.beta1 through 2.8.0.beta6. This vulnerability only affects sites which have modified or disabled Discourse's default Content Security Policy, and have blocked watched words containing HTML tags.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
No known solution is available as of 28th September, 2021. Information regarding this issue will be updated once solution details are available.