CVE-2020-15169

Description

In Action View before versions 5.2.4.4 and 6.0.3.3 there is a potential Cross-Site Scripting (XSS) vulnerability in Action View's translation helpers. Views that allow the user to control the default (not found) value of the `t` and `translate` helpers could be susceptible to XSS attacks. When an HTML-unsafe string is passed as the default for a missing translation key named html or ending in _html, the default string is incorrectly marked as HTML-safe and not escaped. This is patched in versions 6.0.3.3 and 5.2.4.4. A workaround without upgrading is proposed in the source advisory.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

References

• https://groups.google.com/g/rubyonrails-security/c/b-C9kSGXYrc
• https://www.suse.com/security/cve/CVE-2020-15169.html
• https://github.com/rails/rails/security/advisories/GHSA-cfjv-5498-mph5
• https://nvd.nist.gov/vuln/detail/CVE-2020-15169
• https://github.com/rails/rails/commit/e663f084460ea56c55c3dc76f78c7caeddeeb02e
• https://github.com/rails/rails
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionview/CVE-2020-15169.yml
• https://lists.debian.org/debian-lts-announce/2020/10/msg00015.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XJ7NUWXAEVRQCROIIBV4C6WXO6IR3KSB
• https://www.debian.org/security/2020/dsa-4766
• https://security-tracker.debian.org/tracker/CVE-2020-15169