CVE-2026-86306 Details
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.
A vulnerability has been identified in Light0011 CMS, specifically in the Cookie Helper component. The issue arises in the file UserModel.class.php, within commit f72cf46f601efb2a0618c3814cc2f61380b38930. The vulnerability allows for improper authentication by manipulating the Username argument, potentially leading to unauthorized actions. This issue can be exploited remotely, and a public exploit is available.
It is recommended to use a server-side session with a fixed user ID that is validated against account records for each action. Avoid using a username cookie that can be easily manipulated as a means of identity verification.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 7, 2026CISA-ADP
Assessed Sep 8, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/light0011/cms/ | [email protected] | ProductSource CodeVendor |
| https://github.com/light0011/cms/issues/11 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/cve/CVE-2026-86306 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/894817 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/399479 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/399479/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| light0011 cms | f72cf46f601efb2a0618c3814cc2f61380b38930 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 8, 2026 | CVE Modified | CISA-ADP |
| Sep 7, 2026 | New CVE Received | [email protected] |