What is the CVSS score of EUVD-2026-24646?

EUVD-2026-24646 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Slider Bootstrap Carousel EUVD-2026-24646

| CVE-2026-4076 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-04-22 Wordfence

GHSA-wpp9-gmq8-vmx8

XSS WordPress Bootstrap

6.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.4 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Apr 22, 2026 - 10:00 vuln.today

EUVD ID Assigned

Apr 22, 2026 - 08:30 euvd

EUVD-2026-24646

Analysis Generated

Apr 22, 2026 - 08:30 vuln.today

CVE Published

Apr 22, 2026 - 07:45 nvd

MEDIUM 6.4

DescriptionCVE.org

The Slider Bootstrap Carousel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'category' and 'template' shortcode attributes in all versions up to and including 1.0.7. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. The plugin uses extract() on shortcode_atts() to parse attributes, then directly outputs the $category variable into multiple HTML attributes (id, data-target, href) on lines 38, 47, 109, and 113 without applying esc_attr(). Similarly, the $template attribute flows into a class attribute on line 93 without 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.

AnalysisAI

Stored cross-site scripting in Slider Bootstrap Carousel WordPress plugin up to version 1.0.7 allows authenticated attackers with Contributor-level access to inject arbitrary JavaScript via unsanitized 'category' and 'template' shortcode attributes, executing malicious scripts in pages viewed by any user. The vulnerability stems from improper use of extract() on shortcode attributes combined with missing output escaping (esc_attr()) on multiple HTML attributes, enabling persistent XSS injection that affects site security and user data.

Technical ContextAI

Slider Bootstrap Carousel is a WordPress plugin that creates responsive carousel displays using Bootstrap framework via shortcode functionality. The vulnerability exists in the sbc-shortcode.php file where the plugin uses the extract() function to convert shortcode attributes into local variables, then directly inserts the $category and $template variables into HTML attributes (id, data-target, href, class) without applying WordPress escaping functions. The root cause is CWE-79 (Improper Neutralization of Input During Web Page Generation), a class-A weakness where user-supplied data flows into output context without sanitization. The affected CPE is cpe:2.3:a:felipermendes:slider_bootstrap_carousel:*:*:*:*:*:*:*:*, indicating all versions through 1.0.7 are vulnerable. The shortcode mechanism itself is not inherently vulnerable, but the plugin's failure to use WordPress security functions (wp_kses_post for content, esc_attr for HTML attributes, esc_js for JavaScript context) creates the XSS path.

RemediationAI

Update Slider Bootstrap Carousel to a patched version released after 1.0.7 that applies esc_attr() escaping to the $category and $template shortcode attributes across all output locations (lines 38, 47, 93, 109, and 113 in sbc-shortcode.php). If a patched version is not immediately available, disable the plugin until the fix is released via https://www.wordfence.com/threat-intel/vulnerabilities/id/26fe0b7b-dbf8-467f-b5e2-86a858eeaf89. As a compensating control, restrict Contributor-level access to only trusted users by reviewing user roles in WordPress admin (Settings > Users) and downgrading accounts that do not require publishing permissions to Subscriber role; this limits the attack surface to privileged accounts. Additionally, use WordPress security plugins such as Wordfence to monitor for post/page modifications and flag suspicious shortcode patterns containing HTML entities or script tags. Audit all existing posts and pages containing [slider-bootstrap-carousel] shortcodes for injected content before and after patching.