CVE-2018-11627
CVSS v3
6.1
MEDIUM
EPSS Score
2.2 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- sinatraRubyGemsfrom 2.0.0 · fixed in 2.0.2
Vendor advisories
rubygem-sinatra: XSS in the 400 Bad Request page
Red Hat Security Advisory: CloudForms 4.6.8 security, bug fix and enhancement update
Red Hat Security Advisory: CloudForms 4.7 security, bug fix and enhancement update
Description
Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception.
Technical details
- Published
- 2018-05-31
Frequently asked questions
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.