CVE-2025-47154 Information

Description

LibJS in Ladybird before f5a6704 mishandles the freeing of the vector that arguments_list references leading to a use-after-free and allowing remote attackers to execute arbitrary code via a crafted .js file. NOTE: the GitHub README says \Ladybird is in a pre-alpha state and only suitable for use by developers.\

Reference

https://github.com/LadybirdBrowser/ladybird/commit/f5a670421954fc7130c3685b713c621b29516669 https://jessie.cafe/posts/pwning-ladybirds-libjs/ https://jessie.cafe/posts/pwning-ladybirds-libjs/ https://news.ycombinator.com/item?id=43852096