An exploitable cross site scripting (XSS) vulnerability exists in the filter functionality of the delayed_job_web rails gem versions 1.2.9 before 1.4.2. A specially crafted URL can cause an XSS flaw resulting in an attacker being able to execute arbitrary javascript on the victim's browser. An attacker can phish an authenticated user to trigger this vulnerability.

References

• https://nvd.nist.gov/vuln/detail/CVE-2017-12097
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0449
• https://rubygems.org/gems/delayed_job_web/versions/1.4
• https://web.archive.org/web/20200227132840/http://www.securityfocus.com/bid/102484
• ejschmitt/delayed_job_web@6bcb10e
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/delayed_job_web/CVE-2017-12097.yml