CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
What the vulnerability does
The image_url parameter of the AJAX call to the editimage_bwg action of admin-ajax.php is vulnerable to reflected Cross Site Scripting. The value of the image_url parameter is embedded within an existing JavaScript within the response allowing arbitrary JavaScript to be inserted and executed. The attacker must target a an authenticated user with permissions to access this component to exploit this issue.
Explanation of Vulnerability in Simple Terms
PhotoGallery versions 1.0.1 through 1.8.21 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other users viewing the gallery. The vulnerability requires user interaction—victims must visit a page containing the injected content. The impact is limited to session hijacking or credential theft within the site.
What an attacker can do
Inject malicious scripts that run in other users' browsers when they view the gallery.
Potential impact on your site
Users' sessions or credentials could be stolen if they view galleries containing injected scripts.
Conditions required to exploit
Attacker must have a low-privilege account on the site; victim must visit a page with the injected content.
Key dates
External resources
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