CVE-2026-45754

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/symfony/symfony/commit/3e52bf5ab733ee32e35eeeeb2631d859c941838e	Patch
https://github.com/symfony/symfony/commit/4aaa45dd054f73445f1ab254968b7e60b546cc77	Patch
https://github.com/symfony/symfony/releases/tag/v6.4.40	Release Notes
https://github.com/symfony/symfony/releases/tag/v7.4.12	Release Notes
https://github.com/symfony/symfony/releases/tag/v8.0.12	Release Notes
https://github.com/symfony/symfony/security/advisories/GHSA-64hg-93w9-fc35	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:sensiolabs:symfony::::::::
	cpe:2.3:a:sensiolabs:symfony::::::::
	cpe:2.3:a:sensiolabs:symfony::::::::

History

No history.

Information

Published : 2026-07-14 19:17

Updated : 2026-07-21 18:16

NVD link : CVE-2026-45754

Mitre link : CVE-2026-45754

CVE.ORG link : CVE-2026-45754

JSON object : View

Products Affected

sensiolabs

symfony

CWE

CWE-287

Improper Authentication

CWE-306

Missing Authentication for Critical Function

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