What is CVE-2019-7743?

CVE-2019-7743 is a critical-severity vulnerability in Joomla Joomla\!, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-02-12.

How severe is CVE-2019-7743?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Joomla Joomla\!

CVE-2019-7743

An issue was discovered in Joomla! before 3.9.3. The phar:// stream wrapper can be used for objection injection attacks because there is no protection mechanism (such as the TYPO3 PHAR stream wrapper) to prevent use of the phar:// handler for non .phar-files.

Vulnerability class: Insecure Deserialization

EPSS: 0.027 (84.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Joomla Joomla\!
N/a — versions n/a

Weakness classification (CWE)

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2019-7743?: CVE-2019-7743 is a critical-severity vulnerability in Joomla Joomla\!, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-02-12.
How severe is CVE-2019-7743?: Critical severity. CVSS v3 base score is 9.8 out of 10.