Medium 6.2Published May 16, 2026

CVE-2021-47978ProcessMaker 3.5.4 Local File Inclusion via Path Traversal

Updated under an hour ago (Oct 28, 2026, 12:30 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 6.2 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-98
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: May 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Processmaker ProcessMaker processmaker:processmaker (from the name)	through 3.5.4	CNA record

References

References

https://www.exploit-db.com/exploits/50229	exploit
https://www.processmaker.com/	product
https://www.vulncheck.com/advisories/processmaker-local-file-inclusion-via-path-traversal	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.