Vulnerability in Processmaker
CVE-2021-47978
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (54.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Processmaker — versions 0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50229 (exploit)
- www.processmaker.com/ (product)
- www.vulncheck.com/advisories/processmaker-local-file-inclusion-via-path-travers… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47978?
- CVE-2021-47978 is a medium-severity vulnerability in Processmaker, classified under PHP Remote File Inclusion. CVSS score: 6.2/10. Published 2026-05-16.
- How severe is CVE-2021-47978?
- Medium severity. CVSS v3 base score is 6.2 out of 10.