XSS in Gon Project
CVE-2020-25739
An issue was discovered in the gon gem before gon-6.4.0 for Ruby. MultiJson does not honor the escape_mode parameter to escape fields as an XSS protection mechanism. To mitigate, json_dumper.rb in gon now does escaping for XSS by default without relying on MultiJson.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.014 (71.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Gon Project
- Canonical Ubuntu Linux — versions 18.04
- Debian Linux — versions 9.0
Weakness classification (CWE)
References
- github.com/gazay/gon/commit/fe3c7b2191a992386dc9edd37de5447a4e809bc7 (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/09/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4560-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25739?
- CVE-2020-25739 is a medium-severity vulnerability in Gon Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-09-23.
- How severe is CVE-2020-25739?
- Medium severity. CVSS v3 base score is 6.1 out of 10.