better-auth better-icons up to 1.0.5 scan_project_icons/sync_icon icons_file path traversal

Summaryinfo

A vulnerability was found in better-auth better-icons up to 1.0.5. It has been classified as critical. This issue affects some unknown processing of the component scan_project_icons/sync_icon. Performing a manipulation of the argument icons_file results in path traversal. This vulnerability is known as CVE-2026-15527. Attacking locally is a requirement. Furthermore, an exploit is available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability classified as critical has been found in better-auth better-icons up to 1.0.5. This affects an unknown code block of the component scan_project_icons/sync_icon. The manipulation of the argument icons_file with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-15527. The exploitability is told to be easy. An attack has to be approached locally. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• better-auth

Name

• better-icons

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5

Website

• Product: https://github.com/better-auth/better-icons/

CPE 2.3info

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CPE 2.2info

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Submitinfo

Accepted

• Submit #854530: better-auth better-icons 1.0.5 Code Injection (by Mcfly_Zhang)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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