XSS in Sinatrarb Sinatra
CVE-2018-11627
Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.022 (81.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Sinatrarb Sinatra
- Red Hat Cloudforms — versions 4.6, 4.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/sinatra/sinatra/issues/1428 (Exploit, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0315 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0212 (vendor-advisory, Third Party Advisory)
- github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d71a (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-11627?
- CVE-2018-11627 is a medium-severity vulnerability in Sinatrarb Sinatra, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-05-31.
- How severe is CVE-2018-11627?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2018-11627 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.