CVE-2020-8167: debian debian_linux Cross-Site Request Forgery
Vulnerability summary
CVE-2020-8167 is a medium (CVSS 6.5) Cross-Site Request Forgery vulnerability in debian debian_linux. EPSS estimates a 1.49% chance of exploitation in the next 30 days, higher than 74% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 8Timeline
- 19-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A CSRF vulnerability exists in rails <= 6.0.3 rails-ujs module that could allow attackers to send CSRF tokens to wrong domains.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · RubygemsEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS trend
Probability
1.49%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.49% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (hackerone.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- rails< 2:5.2.4.3+dfsg-1
- debian_linuxEOL10.0
RubyGems1 product
- actionview≥ 5.0.0, < 5.2.4.3 | ≥ 6.0.0, < 6.0.3.1
Rubyonrails1 product
- rails< 5.2.4.3 | ≥ 6.0.0, < 6.0.3.1
Ubuntu1 product
- railsAll versions (No fix recorded)
4 vendors · 5 products
References
11 links- groups.google.com/g/rubyonrails-security/c/x9DixQDG9a0X Refsource MISCWEBMailing ListPatchThird Party Advisory
