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.
History

Tue, 03 Mar 2026 05:15:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P'}

cvssV4_0

{'score': 5.1, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: snyk

Published:

Updated: 2026-03-03T05:00:11.753Z

Reserved: 2026-03-02T18:41:43.509Z

Link: CVE-2026-3455

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-03T05:17:25.240

Modified: 2026-03-03T05:17:25.240

Link: CVE-2026-3455

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.