What the vulnerability does
01Description
The Flying Images: Optimize and Lazy Load Images for Faster Page Speed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.4.14 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Flying Images versions up to 2.4.14 contain a stored cross-site scripting (XSS) vulnerability. An authenticated administrator with high privileges can inject malicious scripts into the plugin settings. When other users view affected pages, the injected code executes in their browsers, potentially compromising their sessions or stealing data. The vulnerability requires administrator access and specific configuration conditions to exploit.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that executes when other users view the site.
Potential impact on your site
04Site Impact
Compromised user sessions, credential theft, or malware distribution if an admin account is breached.
Conditions required to exploit
05Prerequisites
Administrator account with high privileges; specific attack complexity conditions must be met.
Key dates
06Disclosure timeline
November 1, 2025
CVE published
April 8, 2026
Record updated
