code injection in Wrapper::buildClientWrapperCode via manipulation of the $client argument. It was possible to force the client to access local files or connect to undesired urls instead of the intended target server's url.

References

• gggeek/phpxmlrpc#80
• https://github.com/FriendsOfPHP/security-advisories/blob/master/phpxmlrpc/phpxmlrpc/2022-11-28-2.yaml
• https://github.com/gggeek/phpxmlrpc/releases/tag/4.9.0
• gggeek/phpxmlrpc@cf6e605