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Fencer Vulns
critical 9.8

CVE-2019-17399 json

The Shack Forms Pro extension before 4.0.32 for Joomla!

published 2019-10-09 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-7803

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

The Shack Forms Pro extension before 4.0.32 for Joomla! allows path traversal via a file attachment.

Patch / fix

  • joomlashack shack_forms_pro 4.0.32

Exploit prediction

1.70% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.