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CVE-2025-59158 is a stored cross-site scripting vulnerability in Coolify's project-creation workflow. In Coolify versions through 4.0.0-beta.420.6, insufficient output encoding or escaping permits an authenticated low-privileged user to create a project whose name contains embedded JavaScript. The stored payload executes in an administrator's browser when the administrator attempts to delete the project or an associated resource.
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Critical stored XSS vulnerability in Coolify caused by improper input sanitization, allowing a low-privileged attacker to inject malicious JavaScript via a project name that executes in an administrator's browser context.
An improper encoding/escaping vulnerability in Coolify allowing authenticated low-privileged users to conduct stored XSS attacks during project creation, executed in the admin's browser when deleting the project or resource.
A critical stored cross-site scripting (XSS) vulnerability in Coolify prior to v4.0.0-beta.420.7 allows low-privileged authenticated users to inject JavaScript into project names, which executes in an administrator's browser when managing the project.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.