Simply Gallery
Monthly
Stored XSS in the SimpLy Gallery Block & Lightbox WordPress plugin (all versions through 3.3.3.2) allows authenticated attackers with Author-level access to inject persistent JavaScript via the sliderMaxHeight block attribute. The root cause is a defective regex in pgc_sgb_sanitize_custom_css() that strips quoted event handlers but silently permits unquoted HTML event handler syntax (e.g., onfocus=alert(document.cookie)), enabling a sanitization bypass that survives to page render. No public exploit or CISA KEV listing is identified at time of analysis, though the stored nature means injected payloads persist and execute against any subsequent visitor - including administrators.
A improper input validation vulnerability in GalleryCreator SimpLy Gallery plugin (versions up to 3.3.2) allows attackers to access functionality that should be restricted by access control lists (ACLs), potentially leading to information disclosure and arbitrary code execution. The vulnerability affects WordPress installations using the simply-gallery-block plugin and stems from insufficient validation of quantity inputs combined with inadequate authorization checks. While CVSS scoring is unavailable, the reported nature of the vulnerability suggests elevated risk due to the potential for unauthorized functionality access and code execution capabilities.
Stored XSS in the SimpLy Gallery Block & Lightbox WordPress plugin (all versions through 3.3.3.2) allows authenticated attackers with Author-level access to inject persistent JavaScript via the sliderMaxHeight block attribute. The root cause is a defective regex in pgc_sgb_sanitize_custom_css() that strips quoted event handlers but silently permits unquoted HTML event handler syntax (e.g., onfocus=alert(document.cookie)), enabling a sanitization bypass that survives to page render. No public exploit or CISA KEV listing is identified at time of analysis, though the stored nature means injected payloads persist and execute against any subsequent visitor - including administrators.
A improper input validation vulnerability in GalleryCreator SimpLy Gallery plugin (versions up to 3.3.2) allows attackers to access functionality that should be restricted by access control lists (ACLs), potentially leading to information disclosure and arbitrary code execution. The vulnerability affects WordPress installations using the simply-gallery-block plugin and stems from insufficient validation of quantity inputs combined with inadequate authorization checks. While CVSS scoring is unavailable, the reported nature of the vulnerability suggests elevated risk due to the potential for unauthorized functionality access and code execution capabilities.