CVE-2026-100176 Stored Cross-Site Scripting (XSS) in AIL Framework Username Timeline Tooltip
Stored XSS in AIL Framework allows attackers to execute arbitrary JavaScript in an analyst's browser via crafted usernames, leading to session hijacking or data exfiltration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-100176?
CVE-2026-100176 is a high-severity cross-site scripting vulnerability in ail framework, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The AIL Framework's username timeline feature is vulnerable to stored cross-site scripting (XSS). Usernames imported from chats and crawled forums are stored without character restrictions. When an authenticated analyst views the username timeline, the application renders these stored usernames into the DOM using D3's html() method in the tooltip. Because the username value (d.obj) is interpolated directly into an HTML string without sanitization, a crafted username containing HTML event handlers (e.g., <img src=x onerror=alert(1)>) will execute arbitrary JavaScript in the analyst's browser when the analyst hovers over the corresponding timeline entry. The attack requires the victim to be an authenticated analyst with access to the timeline view and to interact with the malicious timeline entry (hover). Successful exploitation can lead to session hijacking, data exfiltration, or unauthorized actions performed within the analyst's authenticated session. The vulnerability resides in the client-side JavaScript file var/www/static/js/d3/timeline_basic.js.
Weakness: CWE-79
Which versions are affected by CVE-2026-100176?
How do I fix CVE-2026-100176?
No fix has been published for CVE-2026-100176 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-100176 being exploited?
There is no known exploitation of CVE-2026-100176 in the wild and no public exploit code.
Sources
Also known as GHSA-gr26-vj67-v262.