CVE-2026-2479— Responsive Lightbox & Gallery <= 2.7.1 - Authenticated (Author+) Server-Side Request Forgery via Remote Library Image Upload
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I. Basic Information for CVE-2026-2479
Vulnerability Information
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Vulnerability Title
Responsive Lightbox & Gallery <= 2.7.1 - Authenticated (Author+) Server-Side Request Forgery via Remote Library Image Upload
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.7.1. This is due to the use of `strpos()` for substring-based hostname validation instead of strict host comparison in the `ajax_upload_image()` function. This makes it possible for authenticated attackers, with Author-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Responsive Lightbox & Gallery 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Responsive Lightbox & Gallery 2.7.1及之前版本存在代码问题漏洞，该漏洞源于在ajax_upload_image函数中使用strpos进行基于子串的主机名验证而非严格主机比较，可能导致
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| dfactory | Responsive Lightbox & Gallery | * ~ 2.7.1 | - |
II. Public POCs for CVE-2026-2479
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
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Responsive Lightbox & Gallery < 2.5.2 - Contributor+ Stored - CVE-2025-3742
Responsive Lightbox & Gallery < 2.5.1 - Contributor+ Stored
Same vendor: dfactory
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V. Comments for CVE-2026-2479
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