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CVE-2025-26159 is a cross-site scripting vulnerability in Laravel Starter 11.11.0 affecting the tags feature. According to the provided information, any user who can create or modify tags can inject malicious JavaScript into the tag name field. This indicates insufficient neutralization of untrusted input before it is rendered in a browser context, resulting in a stored XSS condition if the malicious tag name is later displayed to other users without proper output encoding or sanitization.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a proof-of-concept exploit for CVE-2025-26159 targeting Laravel Starter applications. The main file, CVE-2025-26159.go, implements a TCP server that listens on port 9000. The exploit works by injecting a malicious JavaScript payload into the tag name field of the target application. When a victim visits the affected page, their browser executes the payload, which fetches the page content (including cookies) and exfiltrates it to the attacker's server at 127.0.0.1:9000. The Go server decodes the incoming data, extracts 'laravel_starter_session' and 'XSRF-TOKEN' cookies, and prints them. The repository consists of the Go exploit server and a README with usage instructions and the JavaScript payload. No hardcoded external endpoints are present; the attacker is expected to run the server locally or on a chosen host.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.