CVE-2026-18438— WordPress Templately 任意文件上传漏洞
一分钟漏洞结论
影响对象
wpdevteam Templately – Elementor & Gutenberg Template Library: 6500+ Free & Pro Ready Templates And Cloud!
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 Templately是WordPress基金会的一款提供海量模板与云端同步的网站搭建插件。 WordPress Templately 3.7.1及之前版本存在任意文件上传漏洞，该漏洞源于fetch_remote_file函数中文件名验证与目标路径不匹配，文件类型验证基于攻击者控制的Content-Disposition文件名而非URL路径派生的目标文件名，可能导致经认证的攻击者上传GIF+PHP多语言文件并在服务器上执行代码。
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| wpdevteam | Templately – Elementor & Gutenberg Template Library: 6500+ Free & Pro Ready Templates And Cloud! | ≤ 3.7.1 |
affected |
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一、 漏洞 CVE-2026-18438 基础信息
漏洞信息
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Vulnerability Title
Templately <= 3.7.1 - Authenticated (Contributor+) Arbitrary File Upload to Remote Code Execution via Gutenberg Cloud Import Attachment Filename Mismatch
来源: CVE Program / CVE List V5
Vulnerability Description
The Templately – Elementor & Gutenberg Template Library: 6500+ Free & Pro Ready Templates And Cloud! plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.7.1 via the fetch_remote_file function. This is due to a filename validation/destination mismatch in fetch_remote_file, where file type validation is performed against the attacker-controlled Content-Disposition filename rather than the URL-path-derived destination filename. This makes it possible for authenticated attackers, with contributor-level access and above, to execute code on the server. A GIF+PHP polyglot file passes wp_check_filetype_and_ext validation as image/gif via the Content-Disposition filename, while the actual destination path is written with a .php extension derived from the URL path, bypassing the unfiltered_upload capability gate entirely. The affected endpoints are reachable at this privilege level because Templately's entire REST API — including the cloud import endpoints used in this attack (/templately/v1/clouds/upload and /templately/v1/insert) — is authorized only by a current_user_can('delete_posts') check, with no administrator or manage_options capability requirement. The same permission gate also allows a contributor to overwrite the site's global Templately cloud connection via the /templately/v1/login endpoint with global_signin set to true. A complete remediation should both correct fetch_remote_file to validate the file type against the actual destination filename rather than the Content-Disposition header (and avoid deriving the write path from the request URL), and restrict state-changing Templately REST routes to an appropriate administrator-level capability.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/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
Vulnerability Title
WordPress Templately 任意文件上传漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
WordPress Templately是WordPress基金会的一款提供海量模板与云端同步的网站搭建插件。 WordPress Templately 3.7.1及之前版本存在任意文件上传漏洞，该漏洞源于fetch_remote_file函数中文件名验证与目标路径不匹配，文件类型验证基于攻击者控制的Content-Disposition文件名而非URL路径派生的目标文件名，可能导致经认证的攻击者上传GIF+PHP多语言文件并在服务器上执行代码。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| wpdevteam | Templately – Elementor & Gutenberg Template Library: 6500+ Free & Pro Ready Templates And Cloud! | 0 ~ 3.7.1 | - |
|
二、漏洞 CVE-2026-18438 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-18438 补丁与修复 (6)
CVE-2026-18438 厂商安全公告 (1)
CVE-2026-18438 厂商页面 (1)
CVE-2026-18438 其他参考 (2)
IV. Related Vulnerabilities
V. Comments for CVE-2026-18438
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