{"cve":"CVE-2018-20857","nvd":{"published":"2019-07-26T12:15:11.400","modified":"2026-06-17T01:53:36.653","status":"Modified","description":"Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with user@example.com followed by <!---->. and then the attacker's domain name.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-20"],"references":["https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2","https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2"],"products":["zendesk:samlr"],"source":"nvd","synced_at":"2026-10-19T20:58:11.797917892+00:00"},"epss":{"cve":"CVE-2018-20857","score":0.01205,"percentile":0.68292,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qpxp-5j56-gg3x","url":"https://osv.dev/vulnerability/GHSA-qpxp-5j56-gg3x","summary":"samlr XML nodes comment attack","modified":"2024-02-16T08:06:00.838759Z","packages":[{"ecosystem":"RubyGems","name":"samlr","purl":"pkg:gem/samlr","ranges":["<2.6.2"],"fixed":["2.6.2"]}]}],"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."]}