CVE-2026-86244 Details
Description
A security vulnerability has been detected in FastAdmin up to 1.2.0.20210401_beta. Affected is the function register/login of the file application/index/controller/User.php of the component User Controller. Such manipulation of the argument url leads to cross site scripting. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. Upgrading to version 1.2.1.20210731_beta is able to address this issue. The name of the patch is b3d32e2bf3637488cfe2fc58a27a9d2475b2b51b. It is recommended to upgrade the affected component.
A reflected cross-site scripting vulnerability has been identified in FastAdmin versions through 1.2.0.20210401_beta. The issue resides in the User Controller, specifically within the register and login functions of 'application/index/controller/User.php'. The vulnerability is triggered by manipulating the 'url' parameter, which is not properly sanitized before being output to the user login and registration pages. This flaw allows remote attackers to inject and execute malicious scripts in the context of the user's browser.
Users are advised to upgrade to FastAdmin version 1.2.1.20210731_beta, where this vulnerability has been fixed by properly sanitizing the 'url' parameter before output.
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
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/fastadminnet/fastadmin/commit/b3d32e2bf3637488cfe2fc58a27a9d2475b2b51b | [email protected] | Source CodeVendor |
| https://lhzzz08.github.io/posts/cveapplication4/ | [email protected] | ExploitRemedyTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-86244 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/898809 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/399399 | [email protected] | BundlePermission Required |
| https://vuldb.com/vuln/399399/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| FastAdmin | <= 1.2.0.20210401_beta |
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] |