Medium severity · published Jul 29, 2026
CVE-2026-65891
Joomla Extension - joomlacontenteditor.net - Creation of hidden files and unintended file overwrite via rename function in Joomla Content Editor (JCE) < 2.9.99.10
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
Joomla Extension - joomlacontenteditor.net - Creation of hidden files and unintended file overwrite via rename function in Joomla Content Editor (JCE) < 2.20.2 - Improper input validation in the file rename functionality allowed an authenticated user with file management permissions to rename files to otherwise invalid names, resulting in the creation of hidden files. The issue also allowed existing files at the destination path to be unintentionally replaced.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JC
Joomla Content Editor (JCE) extension for Joomla · joomlacontenteditor.net
1.0.0-2.9.99.9 · source: vendor
JC
Jce · Widgetfactorylimited
before 2.20.2; before 2.20.2 · source: NVD
Affected product
JC
Joomla Content Editor (JCE) extension for Joomla
joomlacontenteditor.net
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-65891
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-65891
Product
https://www.joomlacontenteditor.net/
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