CVE-2026-4379

The LightPress Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `group` attribute in the `[gallery]` shortcode in all versions up to, and including, 2.3.4. This is due to the plugin modifying gallery shortcode output to include the `group` attribute value without proper 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.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://plugins.trac.wordpress.org/browser/wp-jquery-lightbox/tags/2.3.4/lightboxes/wp-jquery-lightbox/class-wp-jquery-lightbox.php#L376
https://plugins.trac.wordpress.org/browser/wp-jquery-lightbox/tags/2.3.4/lightboxes/wp-jquery-lightbox/class-wp-jquery-lightbox.php#L395
https://plugins.trac.wordpress.org/changeset?old_path=/wp-jquery-lightbox/tags/2.3.4&new_path=/wp-jquery-lightbox/tags/2.3.5
https://www.wordfence.com/threat-intel/vulnerabilities/id/2bed4818-70c5-40b7-8d8d-f43f3baa0f3d?source=cve

Configurations

No configuration.

History

25 Jul 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) El plugin LightPress Lightbox para WordPress es vulnerable a cross-site scripting almacenado a través del atributo 'group' en el shortcode '[gallery]' en todas las versiones hasta la 2.3.4, inclusive. Esto se debe a que el plugin modifica la salida del shortcode de galería para incluir el valor del atributo 'group' sin el escape adecuado. Esto permite a atacantes autenticados, con acceso de nivel Colaborador y superior, inyectar scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada.

08 Apr 2026, 04:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-08 04:17

Updated : 2026-07-25 10:10

NVD link : CVE-2026-4379

Mitre link : CVE-2026-4379

CVE.ORG link : CVE-2026-4379

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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