Medium severity6.1NVD Advisory· Published May 31, 2018· Updated Jun 17, 2026
CVE-2018-11627
CVE-2018-11627
Description
Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
sinatraRubyGems | >= 2.0.0, < 2.0.2 | 2.0.2 |
Affected products
2- ghsa-coords2 versions
>= 2.0.0, < 2.0.2+ 1 more
- (no CPE)range: >= 2.0.0, < 2.0.2
- (no CPE)range: < 2.2.0-1.1
Patches
Vulnerability mechanics
References
7- github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d71anvdPatchThird Party AdvisoryWEB
- github.com/sinatra/sinatra/issues/1428nvdExploitThird Party AdvisoryWEB
- access.redhat.com/errata/RHSA-2019:0212nvdThird Party AdvisoryWEB
- access.redhat.com/errata/RHSA-2019:0315nvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-mq35-wqvf-r23cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2018-11627ghsaADVISORY
- github.com/rubysec/ruby-advisory-db/blob/master/gems/sinatra/CVE-2018-11627.ymlghsaWEB
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