CVE-2025-49113
Description
A flaw was found in Roundcube Webmail. This vulnerability allows remote code execution by authenticated users via PHP object deserialization through unvalidated _from parameter in upload.php.
Statement
Red Hat has evaluated this vulnerability and its related components. No products are affected as Roundcube Webmail is not shipped in the Red Hat Product Portfolio.
Mitigation
To mitigate this vulnerability, update Roundcube Webmail to version 1.5.10 or 1.6.11, which addresses the issue by properly validating the _from parameter in upload.php.
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Application Data; Unexpected State
Attackers can modify unexpected objects or data that was assumed to be safe from modification. Deserialized data or code could be modified without using the provided accessor functions, or unexpected functions could be invoked.
Availability
Technical Impact: DoS: Resource Consumption (CPU)
If a function is making an assumption on when to terminate, based on a sentry in a string, it could easily never terminate.
Other
Technical Impact: Varies by Context
The consequences can vary widely, because it depends on which objects or methods are being deserialized, and how they are used. Making an assumption that the code in the deserialized object is valid is dangerous and can enable exploitation. One example is attackers using gadget chains to perform unauthorized actions, such as generating a shell.
Frequently Asked Questions
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