CVE-2025-69993: Leaflet versions up to and including 1.9.4 are vulnerable to Cross-Site Scripting (XSS) via the bindPopup() me

Routine

MEDIUM 6.1UPGRADE

CVE-2025-69993 is a medium-severity flaw (CVSS 6.1) affecting leaflet. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-04-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: leafletjs

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-14 15:16 UTCPublished CVE record published
2026-06-17 10:00 UTCUpdated Record last modified

leafletjs leaflet UPGRADE

Affected: <= 1.9.4

Fixed in: newer than 1.9.4

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls leaflet

2. UPGRADE to newer than 1.9.4

npm install leaflet@">1.9.4"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-69993?

leaflet: upgrade to newer than 1.9.4. Exact commands for each OS are on this page.

Is CVE-2025-69993 being exploited?

CVE-2025-69993 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-69993 affect?

CVE-2025-69993 affects leaflet. Severity is medium (CVSS 6.1). 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

How urgent is CVE-2025-69993?

Priority 29/100. Public exploit reference

References

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