CVE-2025-69993 Cross-site scripting in n/a
Attackers can inject arbitrary JavaScript into Leaflet map popups, executing code in the victim's browser session.
- 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-2025-69993?
CVE-2025-69993 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 Apr 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
Leaflet versions up to and including 1.9.4 are vulnerable to Cross-Site Scripting (XSS) via the bindPopup() method. This method renders user-supplied input as raw HTML without sanitization, allowing attackers to inject arbitrary JavaScript code through event handler attributes (e.g., <img src=x onerror="alert('XSS')">). When a victim views an affected map popup, the malicious script executes in the context of the victim's browser session.
Weakness: CWE-79
Which versions are affected by CVE-2025-69993?
It affects 1 product.
Products include Leafletjs Leaflet.
How do I fix CVE-2025-69993?
No fix has been published for CVE-2025-69993 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-2025-69993 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-69993 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as DEBIAN-CVE-2025-69993, GHSA-h5cx-hfj5-x8v3, UBUNTU-CVE-2025-69993.