CVE-2021-47978 ProcessMaker 3.5.4 Local File Inclusion via Path Traversal
Unauthenticated attackers can read arbitrary system files via path traversal in ProcessMaker, exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-47978?
CVE-2021-47978 is a medium-severity path traversal vulnerability in ProcessMaker, published on 16 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ProcessMaker 3.5.4 contains a local file inclusion vulnerability that allows unauthenticated attackers to read arbitrary files by exploiting improper path traversal validation. Attackers can send requests with directory traversal sequences to access sensitive system files like /etc/passwd without authentication.
Weakness: CWE-98
Which versions are affected by CVE-2021-47978?
How do I fix CVE-2021-47978?
No fix has been published for CVE-2021-47978 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-47978 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47978 exists.
Sources
Also known as GHSA-c522-p4cv-rfpf.