CVE-2026-8677
Vulnérabilité moyenne dans Prime Elementor Addons – Lightweight Elementor Widgets for Faster Pages (wpmessiah)
Description
The Prime Elementor Addons – Lightweight Elementor Widgets for Faster Pages plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Widget HTML Tag Settings in all versions up to, and including, 1.3.3 due to insufficient input sanitization and output escaping. 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. The exploit succeeds even for users without the unfiltered_html capability because the payload (e.g., 'img src=x onerror=alert(document.domain)') contains no HTML angle brackets and therefore passes through Elementor's wp_kses_post() filter unchanged at save time.
Gravité et risque d'exploitation
CVE-2026-8677 obtient un score CVSS de 6.4/10, soit une gravité moyenne. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.43 %, ce qui la place devant 36.3 % des CVE référencées.
Que faire ?
- Vérifiez si Prime Elementor Addons – Lightweight Elementor Widgets for Faster Pages (versions 0, <=1.3.3) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- https://www.wordfence.com/threat-intel/vulnerabilities/id/95136083-58d7-4ee4-b894-6910c3992d20?source=cve
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.3.2/includes/Widgets/InfoBox.php#L1645
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.3.2/includes/Widgets/InfoBox.php#L1623
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.3.2/includes/Widgets/Counter.php#L1079
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.3.2/includes/Widgets/CallToAction.php#L1631
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.3.2/includes/Widgets/TeamMember.php#L2638
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.3.2/includes/Traits/PostGridRenderer.php#L164
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.3.2/includes/Widgets/AdvancedAccordion.php#L1396
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.2.0/includes/Widgets/InfoBox.php#L1645
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.2.0/includes/Widgets/InfoBox.php#L1623
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.2.0/includes/Widgets/Counter.php#L1079
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.2.0/includes/Widgets/CallToAction.php#L1631
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.2.0/includes/Widgets/TeamMember.php#L2638
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.2.0/includes/Traits/PostGridRenderer.php#L164
- https://plugins.trac.wordpress.org/browser/unlimited-elementor-inner-sections-by-boomdevs/tags/1.2.0/includes/Widgets/AdvancedAccordion.php#L1396
- https://plugins.trac.wordpress.org/changeset?old_path=unlimited-elementor-inner-sections-by-boomdevs/tags/1.3.3&new_path=unlimited-elementor-inner-sections-by-boomdevs/tags/1.3.4