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CVE-2018-11627
Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception.
Medium6.1EPSS 2.2%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 2.2% · top 18% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Weakness
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- RubyGemssinatraGHSA-mq35-wqvf-r23c (opens in a new tab)
References (4)
- https://github.com/sinatra/sinatra/issues/1428 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2019:0315 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:0212 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d71a (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-mq35-wqvf-r23c (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-11627)Record last updated .