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Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 6.4.40, 7.4.12, and 8.0.12, the Mailjet mailer bridge and LOX24 notifier bridge webhook parsers received configured webhook secrets but did not verify them, allowing unauthenticated POST requests to inject forged Mailjet and LOX24 event payloads. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.

PUBLISHED Reserved 2026-05-13 | Published 2026-07-14 | Updated 2026-07-14 | Assigner GitHub_M




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-287: Improper Authentication

CWE-306: Missing Authentication for Critical Function

Product status

>= 6.4.0, < 6.4.40
affected

>= 7.0.0-BETA1, < 7.4.12
affected

>= 8.0.0-BETA1, < 8.0.12
affected

>= 7.1.0-BETA1, < 7.4.12
affected

>= 8.0.0-BETA1, < 8.0.12
affected

>= 6.4.0, < 6.4.40
affected

>= 7.0.0-BETA1, < 7.4.12
affected

>= 8.0.0-BETA1, < 8.0.12
affected

References

github.com/...ymfony/security/advisories/GHSA-64hg-93w9-fc35

github.com/...ommit/3e52bf5ab733ee32e35eeeeb2631d859c941838e

github.com/...ommit/4aaa45dd054f73445f1ab254968b7e60b546cc77

github.com/symfony/symfony/releases/tag/v6.4.40

github.com/symfony/symfony/releases/tag/v7.4.12

github.com/symfony/symfony/releases/tag/v8.0.12

cve.org (CVE-2026-45754)

nvd.nist.gov (CVE-2026-45754)

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