CVE-2018-16471
There is a possible XSS vulnerability in Rack before 2.0.6 and 1.6.11.
Does this matter?
Lower severity and a low EPSS score (1.89%). Track it; it rarely justifies an emergency change on its own.
Description
There is a possible XSS vulnerability in Rack before 2.0.6 and 1.6.11. Carefully crafted requests can impact the data returned by the `scheme` method on `Rack::Request`. Applications that expect the scheme to be limited to 'http' or 'https' and do not escape the return value could be vulnerable to an XSS attack. Note that applications using the normal escaping mechanisms provided by Rails may not impacted, but applications that bypass the escaping mechanisms, or do not use them may be vulnerable.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.89% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- rack project/rack · debian/debian linux
- Source
- support@hackerone.com
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00032.html
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00016.html
- https://groups.google.com/forum/#%21topic/rubyonrails-security/GKsAFT924Ag
- https://lists.debian.org/debian-lts-announce/2018/11/msg00022.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/4089-1/
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00032.html
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00016.html
- https://groups.google.com/forum/#%21topic/rubyonrails-security/GKsAFT924Ag
- https://lists.debian.org/debian-lts-announce/2018/11/msg00022.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/4089-1/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.