High severity · published May 30, 2023
CVE-2023-23755
An issue was discovered in Joomla! 4.2.0 through 4.3.1
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
An issue was discovered in Joomla! 4.2.0 through 4.3.1. The lack of rate limiting allowed brute force attacks against MFA methods.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Joomla · Joomla
4.2.0 before 4.3.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23755
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-23755
Vendor Advisory
https://developer.joomla.org/security-centre/900-20230502-core-bruteforce-prevention-within-the-mfa-screen.html
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