Cross-site scripting in Laravel Framework - CVE-2026-102279
Published: October 19, 2026
Vulnerability identifier: #VU156198
CSH Severity: Medium
CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-102279
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary JavaScript in a victim's browser through DOM-based cross-site scripting.
The vulnerability exists due to improper neutralization of attacker-controlled HTML in Laravel Framework's debug page information tooltips when rendering input through Tippy.js with allowHTML: true. A remote attacker can inject malicious tooltip content to execute JavaScript when a victim hovers over the affected tooltip.
Exploitation requires APP_DEBUG=true.
Affected software
Laravel Framework
How to mitigate CVE-2026-102279
Install security update from vendor's website.
Laravel Framework - addressed in versions 12.69.0, 13.30.0