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Fencer Intel
critical 9.8

CVE-2018-6577 json

SQL Injection exists in the JEXTN Membership 3.1.0 component for Joomla!

published 8y ago modified 4mo ago also EUVD-2018-18327

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
1
Exploit-DB

Summary

SQL Injection exists in the JEXTN Membership 3.1.0 component for Joomla! via the usr_plan parameter in a view=myplans&task=myplans.usersubscriptions request.

Is CVE-2018-6577 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

  1. First public exploit (EDB-43940)
  2. Published

Exploit prediction

1.98% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-43940 Joomla! Component JEXTN Membership 3.1.0 - 'usr_plan' SQL Injection webapps, 2018-02-02

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/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-89 Improper Neutralization of Special Elements used in an SQL Command

References

Sources

Fencer Intel 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.