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CVE-2026-86244— FastAdmin User Controller User.php login cross site scripting

Quick assessment

Affected
n/a FastAdmin
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 FastAdmin 1.2.0.20210401_beta 及更早版本中发现了一个安全漏洞。受影响的组件是用户控制器（User Controller），具体位于 文件中的 函数。对该函数参数 的操纵会导致跨站脚本攻击（XSS）。该攻击可由远程发起。此漏洞的利用方式已公开披露，且可能被利用。将版本升级至 1.2.1.20210731_beta 可解决该问题。补丁名称为 。建议升级受影响的组件。

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-86244

Vulnerability Information
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Vulnerability Title
FastAdmin User Controller User.php login cross site scripting
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- FastAdmin 1.2.0.20210401_beta cpe:2.3:a:fastadmin:fastadmin:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-86244

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III. Intelligence Information for CVE-2026-86244

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Patches & Fixes for CVE-2026-86244 (1)

Vendor Advisories for CVE-2026-86244 (1)

Security Blog Posts for CVE-2026-86244 (1)

Other References for CVE-2026-86244 (2)

IV. Related Vulnerabilities

Same product: FastAdmin
Same vendor: n/a
Same weakness: CWE-79

V. Comments for CVE-2026-86244

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