VULNERABILITY INTELLIGENCE

CVE-2026-45755

CVSS score5.3 MEDIUM
EPSS probability0.27%
CISA KEVNot currently listed
Published2026-07-14
Last modified2026-07-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.12 and 8.0.12, MailtrapRequestParser::doParse() received the configured webhook secret but ignored the X-Mt-Signature HMAC header, allowing unauthenticated POST requests to inject forged Mailtrap delivery, bounce, open, click, or spam events. This issue is fixed in versions 7.4.12 and 8.0.12.

Weakness classification

  • security-advisories@github.com: CWE-306

Primary references