CVE-2020-35580
Published: April 11, 2026
Official Description
A local file inclusion vulnerability in the FileServlet in all SearchBlox before 9.2.2 allows remote, unauthenticated users to read arbitrary files from the operating system via a /searchblox/servlet/FileServlet?col=url= request. Additionally, this may be used to read the contents of the SearchBlox configuration file (e.g., searchblox/WEB-INF/config.xml), which contains both the Super Admin's API key and the base64 encoded SHA1 password hashes of other SearchBlox users.
Risk Analysis
SearchBlox versions before 9.2.2 are affected by a local file inclusion vulnerability in the FileServlet. This allows remote, unauthenticated users to read arbitrary files from the operating system, including sensitive configuration files containing API keys and hashed passwords. The flaw is urgent because it has been confirmed as exploited in the wild by CISA.
Active exploitation of this vulnerability has been observed in the wild, and it is listed in CISA's KEV catalog. The flaw is remotely exploitable without authentication.
Update SearchBlox to version 9.2.2 or later. Restrict access to sensitive files and directories, and ensure proper authentication and authorization controls are in place for file access.
Technical Analysis
CVE-2020-35580 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2020-35580 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-35580 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1