PatchTheCVECVE-2014-2538: Cross-site scripting (XSS) vulnerability in lib/rack/ssl.rb in the rack-ssl gem before 1.4.0 for Ruby allows r
CVE-2014-2538 is a medium-severity flaw (CVSS 4.3) affecting rack-ssl. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Cross-site scripting (XSS) vulnerability in lib/rack/ssl.rb in the rack-ssl gem before 1.4.0 for Ruby allows remote attackers to inject arbitrary web script or HTML via a URI, which might not be properly handled by third-party adapters such as JRuby-Rack.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.3 (Medium) |
| EPSS exploit chance | 2.2% (top 18%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2014-03-25 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2014-2538?
rack-ssl: upgrade to newer than 1.3.4. Exact commands for each OS are on this page.
Is CVE-2014-2538 being exploited?
CVE-2014-2538 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2014-2538 affect?
CVE-2014-2538 affects rack-ssl. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in lib/rack/ssl.rb in the rack-ssl gem before 1.4.0 for Ruby allows remote attackers to inject arbitrary web script or HTML via a URI, which might not be properly handled by third-party adapters such
How urgent is CVE-2014-2538?
Priority 36/100. No elevated risk signals yet.