CyberRota Analysis
AI-GeneratedThe vulnerability affects the Symfony PHP framework, specifically in the MailomatRequestParser::validateSignature() function, which improperly parses the X-MOM-Webhook-Signature header, allowing for a potential downgrade of the signature algorithm from the required SHA-256. This could lead to unauthorized access or manipulation of webhook data, compromising the integrity of the application. Organizations using affected versions should prioritize upgrading to at least 7.4.13 or 8.0.13 to mitigate this risk.
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Original NVD Description
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.13 and 8.0.13, MailomatRequestParser::validateSignature() parsed X-MOM-Webhook-Signature as algo=signature and passed the request-selected algorithm to hash_hmac(), allowing a signature algorithm downgrade instead of enforcing Mailomat's documented SHA-256 webhook signature. This issue is fixed in versions 7.4.13 and 8.0.13.
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