CVE-2025-69993: n/a
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.
AI Analysis
Technical Summary
CVE-2025-69993 describes a Cross-Site Scripting vulnerability in Leaflet up to version 1.9.4. The bindPopup() method allows injection of arbitrary JavaScript by rendering user-supplied input as unsanitized raw HTML, including event handler attributes such as onerror. This leads to script execution in the victim's browser when they interact with the affected map popup. The vulnerability has a CVSS 3.1 base score of 6.1 (medium severity), with attack vector network, low attack complexity, no privileges required, and user interaction needed. No official fix or patch is currently documented.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of the victim's browser session when they view a crafted popup on a Leaflet map. This can lead to information disclosure or other client-side impacts associated with XSS vulnerabilities. The vulnerability requires user interaction and does not require privileges on the target system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid rendering untrusted input via the bindPopup() method or implement their own input sanitization to prevent injection of malicious HTML or JavaScript. Monitor vendor channels for updates regarding an official patch.
CVE-2025-69993: n/a
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-69993 describes a Cross-Site Scripting vulnerability in Leaflet up to version 1.9.4. The bindPopup() method allows injection of arbitrary JavaScript by rendering user-supplied input as unsanitized raw HTML, including event handler attributes such as onerror. This leads to script execution in the victim's browser when they interact with the affected map popup. The vulnerability has a CVSS 3.1 base score of 6.1 (medium severity), with attack vector network, low attack complexity, no privileges required, and user interaction needed. No official fix or patch is currently documented.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of the victim's browser session when they view a crafted popup on a Leaflet map. This can lead to information disclosure or other client-side impacts associated with XSS vulnerabilities. The vulnerability requires user interaction and does not require privileges on the target system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid rendering untrusted input via the bindPopup() method or implement their own input sanitization to prevent injection of malicious HTML or JavaScript. Monitor vendor channels for updates regarding an official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-01-09T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69de56e582d89c981fb19049
Added to database: 4/14/2026, 3:01:57 PM
Last enriched: 4/14/2026, 3:16:59 PM
Last updated: 4/15/2026, 6:04:49 AM
Views: 8
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.