CVE-2026-9125: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in 2winfactor Presto Player
Presto Player plugin for WordPress versions up to and including 4.2.0 is vulnerable to stored cross-site scripting (XSS) via the 'link_url' parameter in the [presto_player_overlay] shortcode. This occurs because the plugin does not properly sanitize or escape input, allowing javascript: URIs to be injected and rendered as clickable links. Authenticated users with contributor-level access or higher can exploit this to inject arbitrary scripts that execute when other users view the affected pages.
AI Analysis
Technical Summary
CVE-2026-9125 is a stored cross-site scripting vulnerability in the Presto Player WordPress plugin (by 2winfactor) affecting versions up to 4.2.0. The vulnerability arises from insufficient input sanitization and output escaping in the getOverlays() function, which copies the 'link_url' shortcode attribute directly into the overlay configuration without validating the URI scheme. This allows javascript: URIs to persist and be rendered as href attributes in clickable anchor elements by the presto-dynamic-overlay-ui web component. Consequently, authenticated attackers with contributor or higher privileges can inject malicious scripts that execute in the context of users viewing the injected pages.
Potential Impact
An attacker with contributor-level or higher privileges can inject arbitrary JavaScript code into pages via the 'link_url' parameter, leading to stored XSS. This can result in information disclosure or session hijacking for users who view the compromised pages. The vulnerability does not impact availability and requires user interaction (viewing the page).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the Presto Player plugin if possible. Monitor vendor channels for updates and apply patches promptly once released.
CVE-2026-9125: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in 2winfactor Presto Player
Description
Presto Player plugin for WordPress versions up to and including 4.2.0 is vulnerable to stored cross-site scripting (XSS) via the 'link_url' parameter in the [presto_player_overlay] shortcode. This occurs because the plugin does not properly sanitize or escape input, allowing javascript: URIs to be injected and rendered as clickable links. Authenticated users with contributor-level access or higher can exploit this to inject arbitrary scripts that execute when other users view the affected pages.
CVSS v3.1
Score 6.4medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9125 is a stored cross-site scripting vulnerability in the Presto Player WordPress plugin (by 2winfactor) affecting versions up to 4.2.0. The vulnerability arises from insufficient input sanitization and output escaping in the getOverlays() function, which copies the 'link_url' shortcode attribute directly into the overlay configuration without validating the URI scheme. This allows javascript: URIs to persist and be rendered as href attributes in clickable anchor elements by the presto-dynamic-overlay-ui web component. Consequently, authenticated attackers with contributor or higher privileges can inject malicious scripts that execute in the context of users viewing the injected pages.
Potential Impact
An attacker with contributor-level or higher privileges can inject arbitrary JavaScript code into pages via the 'link_url' parameter, leading to stored XSS. This can result in information disclosure or session hijacking for users who view the compromised pages. The vulnerability does not impact availability and requires user interaction (viewing the page).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the Presto Player plugin if possible. Monitor vendor channels for updates and apply patches promptly once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-05-20T17:39:30.319Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2b6bad815e7002b89de7cb
Added to database: 6/12/2026, 2:15:09 AM
Last enriched: 6/12/2026, 2:30:00 AM
Last updated: 6/12/2026, 4:47:01 AM
Views: 7
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