#VU19031 Reflected cross-site scripting in Gallery PhotoBlocks - Visual Photo Gallery
Published: July 8, 2019 / Updated: July 9, 2019
Gallery PhotoBlocks - Visual Photo Gallery
Green Tree Labs
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
PoC:
https://[host]/wp-content/plugins/photoblocks-grid-gallery/admin/partials/photoblocks-edit.php?id="><svg/onload=alert(/XSS/)>