{"cve":"CVE-2018-1000078","nvd":{"published":"2018-03-13T15:29:00.723","modified":"2026-06-17T01:32:22.657","status":"Modified","description":"RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Cross Site Scripting (XSS) vulnerability in gem server display of homepage attribute that can result in XSS. This attack appear to be exploitable via the victim must browse to a malicious gem on a vulnerable gem server. This vulnerability appears to have been fixed in 2.7.6.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["http://blog.rubygems.org/2018/02/15/2.7.6-released.html","http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html","https://access.redhat.com/errata/RHSA-2018:3729","https://access.redhat.com/errata/RHSA-2018:3730","https://access.redhat.com/errata/RHSA-2018:3731"],"products":["debian:debian_linux","rubygems:rubygems"],"source":"nvd","synced_at":"2026-10-19T20:48:50.842038930+00:00"},"epss":{"cve":"CVE-2018-1000078","score":0.02749,"percentile":0.86206,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-87qx-g5wg-mwmj","url":"https://osv.dev/vulnerability/GHSA-87qx-g5wg-mwmj","summary":"RubyGems Cross-site Scripting vulnerability","modified":"2024-03-13T05:21:28.072094Z","packages":[{"ecosystem":"RubyGems","name":"rubygems-update","purl":"pkg:gem/rubygems-update","ranges":["<2.7.6"],"fixed":["2.7.6"]},{"ecosystem":"Maven","name":"org.jruby:jruby-stdlib","purl":"pkg:maven/org.jruby/jruby-stdlib","ranges":["<9.1.16.0"],"fixed":["9.1.16.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}