PT-2026-43515 · Fides It · Post Categories Gallery

Dj + 1 · Publicado 2026-05-27 · Atualizado 2026-06-04 · CVE-2026-8867

NVD

CVSS v3.1

6.4

Média

Vetor base

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

The Post Category Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'postcategorygallery' shortcode in versions up to, and including, 1.0.0. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes (such as total width, color scheme, and caption font size) inside the sc horcatbar() function, which are concatenated directly into HTML attribute values. 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.

Correção

XSS

Enumeração de Fraquezas

CWE-79

Identificadores relacionados

CVE-2026-8867

Produtos afetados

Post Categories Gallery

Referências · 5

• https://reddit.com/r/StopBadBots/comments/1twww49/insane_record_145_wordpress_plugins_exposed_with · Publicação no Reddit
• https://plugins.trac.wordpress.org/browser/post-category-gallery/trunk/horcatbar.php#L97 · Nota
• https://wordfence.com/threat-intel/vulnerabilities/id/f439718e-4a3d-4dc9-a16c-6b655480dde6?source=cve · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-8867 · Nota de Segurança
• https://plugins.trac.wordpress.org/browser/post-category-gallery/trunk/horcatbar.php#L79 · Nota