Medium severity · published Feb 12, 2019
CVE-2019-7740
An issue was discovered in Joomla! before 3.9.3
6.1
CVSS
0.8%
EPSS
No
On KEV
Description
An issue was discovered in Joomla! before 3.9.3. Inadequate parameter handling in JavaScript code (core.js writeDynaList) could lead to an XSS attack vector.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Joomla · Joomla
2.5.0 through 3.9.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-7740
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-7740
Vendor Advisory
https://developer.joomla.org/security-centre/769-20190205-core-xss-issue-in-core-js-writedynalist
More from Joomla
9.8
CVE-2016-10033
The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command and consequently execute…
5.3
CVE-2023-23752
[20230201] - Core - Improper access check in webservice endpoints
9.8
CVE-2026-73373
Joomla! Core - [20260810] - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6.1.2
9.8
CVE-2026-35221
Joomla! Core - [20260506] - Authenticated blind SQLi in com_finder
9.8
CVE-2026-40383
Joomla! Core - [20260509] - LFI in HTMLView layout parameter