Download [hot] — Ysoserial-0.0.4-all.jar

This outputs a serialized Java object that, when deserialized by a vulnerable app, will run the calculator.

for compatibility with older lab environments or specific CVE reproductions. Official Release Page : You can find all compiled versions, including the which bundles all dependencies, on the GitHub Releases Direct Download : The specific ysoserial-0.0.4-all.jar file is historically hosted on the v0.0.4 Release URL Quick Start: Using the JAR ysoserial-0.0.4-all.jar download

While 0.0.4 is an older release, it is frequently cited in legacy tutorials and CTF (Capture The Flag) write-ups. Modern environments may have patched these specific gadget chains, so it is often better to use the latest version from the GitHub master branch to access newer gadgets like CommonsBeanutils1 Security Warning ysoserial is a powerful exploitation tool. This outputs a serialized Java object that, when