CVE-2020-35370: A RCE vulnerability exists in Raysync below 3.3.3.8. An unauthenticated unauthorized attacker sending a specifically cra
highvulnerability
security
Summary
CVE-2020-35370 is a remote code execution vulnerability (the ability to run commands on a server without owning it) in Raysync versions before 3.3.3.8 that allows an attacker without authentication (login credentials) to send a specially crafted request that overwrites a file on the server with malicious code, then log in as the admin user and modify shell files to gain control of the hosting server.
Vulnerability Details
CVSS Score
8.8(high)
EPSS (30-day exploit probability)
EPSS: 5.5%
Classification
Attack SophisticationModerate
Original source: https://nvd.nist.gov/vuln/detail/CVE-2020-35370
First tracked: February 15, 2026 at 08:46 PM
Classified by LLM (prompt v3) · confidence: 95%