CRITICAL CWE-434
CVE-2020-36847
Simple File List < 4.2.3 - Remote Code Execution
Eemitch·Simple File List
9.8/ 10
CVSS 3.1
Critical severity
59%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 99.1% of all CVEs
Not listed
CISA KEV catalog
No confirmed in-the-wild exploitation on CISA's list, but a public proof of concept exists.
Timeline
- Published
- Jul 12, 2025
- Updated
- Apr 8, 2026
- First covered
- Jul 11, 2026
- Latest story
- 4 months ago
Summary
The Simple-File-List Plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 4.2.2 via the rename function which can be used to rename uploaded PHP code with a png extension to use a php extension. This allows unauthenticated attackers to execute code on the server.
CWE-434Unrestricted Upload of File with Dangerous Type
Attack profile
Attack vectorNetwork
ComplexityLow
PrivilegesNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
- Eemitch Simple File Listbefore 4.2.3