Vulnerability · Published Oct 7, 2026 · Assigned by VulnCheck
CVE-2026-107272Gophish through 0.12.1 XSS via Unescaped SMTP Server Error Messages
Medium 4.7
In plain English
A medium-severity cross-site scripting in gophish from gophish. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.2%top 91.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- Researcher Disclosure technical-description, exploit
- https://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/static/js/src/app/campaign_results.js#L422-L427 technical-description
- https://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/static/js/src/app/campaigns.js#L110-L113 technical-description
- https://github.com/gophish/gophish product
- VulnCheck Advisory: Gophish through 0.12.1 XSS via Unescaped SMTP Server Error Messages third-party-advisory