Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-9125— The Ultimate Video Player For WordPress <= 4.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'link_url' Shortcode Attribute

Quick assessment

Affected
2winfactor Presto Player
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.

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。

CVSS 6.4 · Medium EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
2winfactor Presto Player ≤ 4.2.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-9125

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
The Ultimate Video Player For WordPress <= 4.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'link_url' Shortcode Attribute
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/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
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 POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-9125

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-9125 (5)

Vendor Advisories for CVE-2026-9125 (1)

Proof of Concept for CVE-2026-9125 (1)

Vendor Pages for CVE-2026-9125 (1)

Other References for CVE-2026-9125 (2)

IV. Related Vulnerabilities

Same product: Presto Player
Same vendor: 2winfactor
Same weakness: CWE-79

V. Comments for CVE-2026-9125

No comments yet

Leave a comment