High severity · published Sep 7, 2026
CVE-2026-86306
light0011 cms Cookie Helper UserModel.class.php improper authentication
7.3
CVSS
0.7%
EPSS
No
On KEV
Description
A weakness has been identified in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. This affects an unknown part of the file App/Home/Model/UserModel.class.php of the component Cookie Helper. Executing a manipulation of the argument Username can lead to improper authentication. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
cms · light0011
c774dce31c6df0055568a8d5c53d964d99be199d; f72cf46f601efb2a0618c3814cc2f61380b38930 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86306
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-86306
github.com
https://github.com/light0011/cms/
github.com
https://github.com/light0011/cms/issues/11
vuldb.com
https://vuldb.com/cve/CVE-2026-86306
vuldb.com
https://vuldb.com/submit/894817
vuldb.com
https://vuldb.com/vuln/399479
vuldb.com
https://vuldb.com/vuln/399479/cti
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