CVE-2020-29597
Published: April 11, 2026
Official Description
IncomCMS 2.0 has a modules/uploader/showcase/script.php insecure file upload vulnerability. This vulnerability allows unauthenticated attackers to upload files into the server.
Risk Analysis
IncomCMS 2.0 has an insecure file upload vulnerability in modules/uploader/showcase/script.php. This flaw allows unauthenticated attackers to upload arbitrary files to the server, which can lead to remote code execution and full system compromise. This is an urgent vulnerability due to its confirmed exploitation in the wild by CISA.
This insecure file upload vulnerability has been actively exploited in the wild and is included in CISA's KEV catalog. The ability for unauthenticated attackers to upload files remotely makes this a severe threat.
Apply patches or upgrade IncomCMS to a version that addresses this insecure file upload vulnerability. Implement strict file type and size validation for all uploads, and store uploaded files outside the web root.
Technical Analysis
CVE-2020-29597 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-2020-29597 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.
Affected Vendors & Products
Exploit & PoC Resources
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-29597 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