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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.027 (85.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
Weakness classification (CWE)
References
- developer.joomla.org/security-centre/770-20190206-core-implement-the-typo3-phar… (Vendor Advisory)
- www.securityfocus.com/bid/107050 (VDB Entry, Third Party Advisory, vdb-entry)
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.