Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 97.4%; technical severity is CVSS 8.8.
ThinkPHP before 3.2.4, as used in Open Source BMS v1.1.1 and other products, allows Remote Command Execution via public//?s=index/\think\app/invokefunction&function=call_user_func_array&vars[0]=system&vars[1][]= followed by the command.
Who should care
- Teams operating Open Source Background Management System, ThinkPHP, Zzzphp
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Open Source Background Management System, ThinkPHP, Zzzphp is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CWE
- CWE-306
- Affected versions
- Opensourcebms Open Source Background Management System (Version: 1.1.1); ThinkPHP ThinkPHP (End Excluding: 3.2.4); Zzzcms Zzzphp (Version: 1.6.1)
- Published
- 24 February 2019
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 97.4%
- Signal calculated at 84