An attacker could create a custom data file ( .omv ) where a column name contained hidden JavaScript code instead of plain text. Because early versions of the Electron framework did not fully clean or filter the text, the app treated the malicious code as a command. 2. Code Execution
: If Jamovi prompts you with an alert stating that a file contains custom R code or external scripts, do not permit execution unless you have verified every line of code yourself. jamovi 0955 exploit
[Attacker crafts .omv file] -> [Injects XSS payload into 'column-name' attribute] | v [Victim opens .omv document] -> [Jamovi renders the spreadsheet layout] | v [Payload triggers in Electron JS context] -> [Node.js binding executes System Commands] 3. Step-by-Step Exploitation Mechanics An attacker could create a custom data file (
Run the application inside an isolated Virtual Machine (VM) or a containerized sandbox environment. Code Execution : If Jamovi prompts you with
: If the local session interacts with external servers or contains local application data caches, the script can exfiltrate session tokens or sensitive data accessible via the browser engine context.
By carefully crafting a data set, an attacker can manipulate the PRNG to produce a specific sequence of numbers that, when used in a statistical analysis, will produce a desired result. This can include producing artificially significant p-values, inflating or deflating effect sizes, or even creating fake data that appears to support a specific hypothesis.
However, if an Electron application does not properly neutralize user-controllable input before rendering it on screen, it becomes susceptible to standard web vulnerabilities. In the case of CVE-2021-28079, the specific component handling the failed to sanitize input string lengths and characters in data column names. From XSS to Remote Code Execution (RCE)