{"cve":"CVE-2026-3455","nvd":{"published":"2026-03-03T05:17:25.240","modified":"2026-06-17T10:43:36.783","status":"Analyzed","description":"Versions of the package mailparser before 3.9.3 are vulnerable to Cross-site Scripting (XSS) via the textToHtml() function due to the improper sanitisation of URLs in the email content. An attacker can execute arbitrary scripts in victim browsers by adding extra quote  \" to the URL with embedded malicious JavaScript code.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:P","score":2.0},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://gist.github.com/hayageek/7fcb225e3b1ea9a341d560403fbb585a","https://github.com/nodemailer/mailparser/commit/921a67df4cfb38f0b411037d7b26fbd4d5411b08","https://github.com/nodemailer/mailparser/issues/412","https://security.snyk.io/vuln/SNYK-JS-MAILPARSER-15204032"],"products":["nodemailer:mailparser"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2026-3455","score":0.00363,"percentile":0.30147,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7gmj-h9xc-mcxc","url":"https://osv.dev/vulnerability/GHSA-7gmj-h9xc-mcxc","summary":"mailparser vulnerable to Cross-site Scripting","modified":"2026-03-04T20:41:19.751032Z","packages":[{"ecosystem":"npm","name":"mailparser","purl":"pkg:npm/mailparser","ranges":["<3.9.3"],"fixed":["3.9.3"]}]}],"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."]}