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Fencer Vulns
high 7.5

CVE-2017-5214 json

The Codextrous B2J Contact (aka b2j_contact) extension before 2.1.13 for Joomla!

published 2017-05-17 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14320

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

The Codextrous B2J Contact (aka b2j_contact) extension before 2.1.13 for Joomla! allows prediction of a uniqid value based on knowledge of a time value. This makes it easier to read arbitrary uploaded files.

Exploit prediction

1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • navixia.com https://navixia.com/storage/app/media/uploaded-files/CVE/cve-2017-521415.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)

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.