Cross-site scripting in 2winfactor Presto Player
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| 2winfactor | Presto Player | up to 4.2.0 | — | No fix listed | CNA |
- Presto Player Vendor2winfactor Affected up to 4.2.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9125
- 2026-10-03 Alias added: GHSA-2m85-j8xj-wrg2
References
Other 11
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c87e7f50-f14a-4751-abcb-3a5bdd214889?source=cve
- https://plugins.trac.wordpress.org/browser/presto-player/tags/4.1.4/inc/Services/Shortcodes.php#L464
- https://plugins.trac.wordpress.org/browser/presto-player/tags/4.1.4/inc/Services/Shortcodes.php#L513
- https://plugins.trac.wordpress.org/browser/presto-player/tags/4.1.4/templates/video.php#L16
- https://plugins.trac.wordpress.org/browser/presto-player/tags/4.1.4/dist/components/collection/components/core/features/presto-dynamic-overlays/component/presto-dynamic-overlays.js#L1
- https://plugins.trac.wordpress.org/browser/presto-player/tags/4.1.1/inc/Services/Shortcodes.php#L464
- https://plugins.trac.wordpress.org/browser/presto-player/tags/4.1.1/inc/Services/Shortcodes.php#L513
- https://plugins.trac.wordpress.org/browser/presto-player/tags/4.1.1/templates/video.php#L16
- https://plugins.trac.wordpress.org/browser/presto-player/tags/4.1.1/dist/components/collection/components/core/features/presto-dynamic-overlays/component/presto-dynamic-overlays.js#L1
- https://plugins.trac.wordpress.org/changeset/3553268/presto-player/trunk/inc/Services/Shortcodes.php
- https://research.cleantalk.org/cve-2026-9125/
More 2winfactor vulnerabilities
- TI-2026-70210 Stored cross-site scripting in Presto Player WordPress plugin CVSS 3.1HIGH 7.2
Sources
- CVE-2026-9125 · CVE Program
- CVE-2026-9125 · NVD
- FIRST EPSS
- GHSA-2m85-j8xj-wrg2 · GitHub Advisory Database · CC BY 4.0
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