CVE-2026-18983— User Avatar 2.5.4 存储型跨站脚本漏洞
一分钟漏洞结论
影响对象
onedesigns One User Avatar | User Profile Picture
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
WordPress 的“One User Avatar
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| onedesigns | One User Avatar | User Profile Picture | ≤ 2.5.4 |
affected |
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一、 漏洞 CVE-2026-18983 基础信息
漏洞信息
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Vulnerability Title
One User Avatar | User Profile Picture <= 2.5.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via wpua-file Parameter
来源: CVE Program / CVE List V5
Vulnerability Description
The One User Avatar | User Profile Picture plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.5.4 via the wpua_action_process_option_update function. This is due to insufficient file type validation in wp_handle_upload() called without a MIME allow-list, with post-write validation relying on the attacker-controlled client-supplied Content-Type header rather than a server-derived type, and no cleanup of files that fail the check. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. in order to exploit this vulnerability an admin has to give subscribers permission to upload avatars. While PHP files and svg files are rejected, dxfp files are accepted.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| onedesigns | One User Avatar | User Profile Picture | 0 ~ 2.5.4 | - |
|
二、漏洞 CVE-2026-18983 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-18983 补丁与修复 (3)
CVE-2026-18983 安全博客文章 (1)
CVE-2026-18983 厂商页面 (2)
IV. Related Vulnerabilities
V. Comments for CVE-2026-18983
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