0955 Exploit | Jamovi

: When a user opens the tainted file, the JavaScript triggers automatically in the app's UI.

If you find suspicious R expressions, report the file to jamovi’s security team at security@jamovi.org. And if someone mentions the “0.9.5.5 exploit,” you can now tell them the full story—a legend rooted in a misunderstood PoC, but a valuable lesson nonetheless. jamovi 0955 exploit

However, the story is not that simple. While the specific exploit was debunked, a related real weakness was found and patched in jamovi 0.9.6.0: a module installation vulnerability. Prior to 0.9.6.0, installing a malicious module from an untrusted repository could run arbitrary R code during installation. But that required user consent—not a silent drive-by exploit. : When a user opens the tainted file,

Jamovi (versions prior to 1.2.19) Vulnerability Type: Cross-Site Scripting (XSS) leading to Remote Code Execution (RCE) Attack Vector: Local / File-based However, the story is not that simple

: In some scenarios, XSS can be used as a stepping stone to deliver further malware. Why Version 0.9.5.5 is at Risk Legacy Codebase

, a demographic that often shares data files across institutional networks. The trust inherent in peer-to-peer data sharing makes it an ideal vector for social engineering

: Version 0.9.5.5 is highly outdated. Users should update to the latest version available on the official jamovi download page Avoid Untrusted Files : Do not open