CVE-2026-9125— The Ultimate Video Player For WordPress <= 4.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'link_url' Shortcode Attribute
Possible ATT&CK Techniques 1AI
T1059.007 · JavaScriptAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| 2winfactor | Presto Player | ≤ 4.2.0 | affected |
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I. Basic Information for CVE-2026-9125
Vulnerability Information
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Vulnerability Title
The Ultimate Video Player For WordPress <= 4.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'link_url' Shortcode Attribute
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Presto Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'link_url' parameter of the [presto_player_overlay] shortcode in versions up to, and including, 4.2.0 This is due to insufficient input sanitization and output escaping in the getOverlays() function, which copies the link_url shortcode attribute directly into the overlay configuration without scheme validation, allowing javascript: URIs to survive and be rendered as the href of a clickable anchor element by the presto-dynamic-overlay-ui web component. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
Andre Gagnon Presto Player 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Presto Player是Andre Gagnon个人开发者的一个视频渲染插件。 Andre Gagnon Presto Player 4.2.0及之前版本存在跨站脚本漏洞，该漏洞源于getOverlays()函数输入清理和输出转义不足，导致link_url参数存在存储型跨站脚本漏洞，允许经过身份验证的攻击者注入任意Web脚本。
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 |
|---|---|---|---|---|
| 2winfactor | Presto Player | 0 ~ 4.2.0 | - |
II. Public POCs for CVE-2026-9125
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Patches & Fixes for CVE-2026-9125 (5)
Vendor Advisories for CVE-2026-9125 (1)
Vendor Pages for CVE-2026-9125 (1)
Other References for CVE-2026-9125 (2)
IV. Related Vulnerabilities
Same weakness: CWE-79
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Cross-Site Scripting (XSS) Vulnerability in Password Reset R - CVE-2026-12619
GridTime™ 3000 GNSS Time Server CSRF to XSS - CVE-2026-12430
Blocksy Companion <= 2.1.45 - Authenticated (Editor+) Stored - CVE-2026-12157
BetterDocs <= 4.5.3 - Authenticated (Contributor+) Stored Cr
V. Comments for CVE-2026-9125
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