SB2026101955 - Cross-site scripting in Laravel Framework



SB2026101955 - Cross-site scripting in Laravel Framework

Published: October 19, 2026

Security Bulletin ID SB2026101955
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Cross-site scripting (CVE-ID: CVE-2026-102279)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 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]


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.


Remediation

Install update from vendor's website.