CVE-2017-20248: Apptha Slider Gallery

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Apptha Slider Gallery 1.0 contains a path traversal vulnerability that allows unauthenticated attackers to download arbitrary files by manipulating the imgname parameter. Attackers can send requests to asgallDownload.php with directory traversal sequences ../ to access sensitive files outside the intended directory.

Affected products

• Apptha Apptha Slider Gallery: version 1.0 only

Published 2026-06-09. Last modified 2026-07-21.