A code execution vulnerability exists in the Javascript saveAs API of Foxit Reader 12.1.3.15356. A specially crafted malformed file can create arbitrary files, which can lead to remote code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-39542
• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1832