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Fencer Vulns
high 8.8

CVE-2020-13760 json

In Joomla! before 3.9.19, missing token checks in com_postinstall lead to CSRF.

published 2020-06-02 6 y ago modified 2026-09-08 2 mo ago also BIT-joomla-2020-13760 , EUVD-2020-5978

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

In Joomla! before 3.9.19, missing token checks in com_postinstall lead to CSRF.

Patch / fix

  • bitnami joomla 3.9.19
  • joomla joomla! 3.9.19

Exploit prediction

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
OSV 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
bitnami joomla
>=3.7.0, <3.9.19
3.9.19

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

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.