CVE-2018-11627

moderate-risk
Published 2018-05-31

Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception.

Do I need to act?

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0.40% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.1/10 Medium
NETWORK / LOW complexity

Affected Products (3)

Sinatra

Affected Vendors

Redhat Sinatrarb

References (8)

Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0212
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0315
Patch https://github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d7...
Exploit https://github.com/sinatra/sinatra/issues/1428
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0212
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0315
Patch https://github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d7...
Exploit https://github.com/sinatra/sinatra/issues/1428
34
/ 100
moderate-risk
Severity 23/34 · High
Exploitability 2/34 · Minimal
Exposure 9/34 · Low