Stored cross-site scripting in Prime Slider Elementor addons
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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
Prime Slider, a WordPress plugin by bdthemes, is affected in all versions up to and including 4.7.2. Missing input sanitization and output escaping (CWE-79) let a regex fallback turn inert submitted markup into live HTML attributes that are stored and rendered without further sanitization. An unauthenticated remote attacker can inject arbitrary web scripts through the comment parameter, and they run whenever a user accesses an injected page.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
The Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.7.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is possible because core wp_filter_kses leaves the submitted markup inert, but the plugin's subsequent regex fallback consumes closing quotes of allowed attribute values containing 'bdt-', promoting previously inert bytes — such as event handlers like onfocus — into real HTML attributes that are then written to the database and rendered without further sanitization.
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 |
|---|---|---|---|---|---|
| bdthemes | Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons | up to 4.7.2 | — | No fix listed | CNA |
- Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons Vendorbdthemes Affected up to 4.7.2 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Prime Slider.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-28 Threatist record created from CVE-2026-111111
- 2026-10-28 Alias added: GHSA-986p-52gw-j792
- 2026-10-28 Priority changed: MEDIUM → LOW
- 2026-10-29 CISA SSVC decision points changed
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/918dd473-dbe7-4352-95e9-3f705b09a4f2?source=cve
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/includes/class-content-guard.php#L329
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/includes/class-content-guard.php#L292
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/includes/class-content-guard.php#L128
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/includes/class-content-guard.php#L59
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/loader.php#L133
- https://plugins.trac.wordpress.org/changeset/3752580/bdthemes-prime-slider-lite/trunk/includes/class-content-guard.php
More bdthemes vulnerabilities
- TI-2024-10178 Element Pack Elementor Addons < 5.10.3 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2024-09719 Element Pack Elementor Addons < 5.10.3 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2026-54684 SigmaForms Pro <= 1.4.11 - Unauthenticated Arbitrary File Deletion via Path Traversal in File Upload Field CVSS 3.1CRITICAL 9.8
- TI-2026-12244 Unrestricted file upload in bdthemes SigmaForms Pro – AI Generated Forms CVSS 3.1CRITICAL 9.8
- TI-2024-07444 Deserialization of untrusted data in bdthemes Ultimate Store Kit – Addon For WooCommerce… CVSS 3.1CRITICAL 9.8
- TI-2025-26330 WordPress Ultimate Store Kit Elementor Addons plugin <= 2.4.0 - Deserialization of untrusted data Vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-111111 · CVE Program
- CVE-2026-111111 · NVD
- FIRST EPSS
- GHSA-986p-52gw-j792 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences