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.

CVSS v4.0

6.9 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

6.2 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.78% chance of exploitation in the next 30 days, 53th percentile

Published

2026-05-16

Updated

2026-05-18

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/50229

References

• CVE Record
• NVD entry

Related

• CVE-2021-47977
• CVE-2021-47979
• CVE-2021-47976
• CVE-2021-47980
• CVE-2021-47975
• CVE-2021-47981