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.

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…

EPSS: 0.000 (12.6th percentile) — read the EPSS interpretation.

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.

Affected products

Processmaker — versions 0

Weakness classification (CWE)

CWE-98 — PHP Remote File Inclusion

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (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.