Gophish through 0.12.1 XSS via Unescaped SMTP Server Error Messages

Advisories

Gophish through 0.12.1 XSS via Unescaped SMTP Server Error Messages

severity: low
date: 10/7/2026
Affecting: gophish <= 0.12.1
CVE: CVE-2026-107272
CWE: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS: 2.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References: Researcher Disclosure
https://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/static/js/src/app/campaign_results.js#L422-L427
https://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/static/js/src/app/campaigns.js#L110-L113
https://github.com/gophish/gophish
VulnCheck Advisory: Gophish through 0.12.1 XSS via Unescaped SMTP Server Error Messages
Credit: Sohaib Harraoui (Ostorlab)
Description: Gophish through 0.12.1 contains stored and reflected cross-site scripting vulnerabilities that allow attackers to inject script by returning malicious SMTP server error messages. Attackers controlling or intercepting a sending profile's SMTP server can execute script when administrators view campaign results or send test emails, stealing API keys.

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