CVE-2026-8867 - CERT CVE
ID CVE-2026-8867
Sažetak 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.
Reference
CVSS
Base: 6.4
Impact: 2.7
Exploitability:3.1
Pristup
VektorSloženostAutentikacija
NETWORK LOW LOW
Impact
PovjerljivostCjelovitostDostupnost
LOW LOW NONE
CVSS vektor CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Zadnje važnije ažuriranje 27-05-2026 - 14:50
Objavljeno 27-05-2026 - 07:16