Ne-Lexa php-zip up to 4.0.2 ZIP src/ZipFile.php ZipFile::extractTo entryName path traversal

Summaryinfo

A vulnerability described as critical has been identified in Ne-Lexa php-zip up to 4.0.2. This vulnerability affects the function ZipFile::extractTo of the file src/ZipFile.php of the component ZIP Handler. Executing a manipulation of the argument entryName can lead to path traversal. This vulnerability is registered as CVE-2026-16767. It is possible to launch the attack remotely. 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 was found in Ne-Lexa php-zip up to 4.0.2. It has been declared as critical. This vulnerability affects the function ZipFile::extractTo of the file src/ZipFile.php of the component ZIP Handler. The manipulation of the argument entryName with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-16767. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

It is possible to download the exploit 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. By approaching the search of inurl:src/ZipFile.php it is possible to find vulnerable targets with Google Hacking.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Programming Language Software

Vendor

• Ne-Lexa

Name

• php-zip

Version

• 4.0.0
• 4.0.1
• 4.0.2

Website

• Product: https://github.com/Ne-Lexa/php-zip/

CPE 2.3info

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CPE 2.2info

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Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #862203: Ne-Lexa php-zip 4.0.2 and prior Path Traversal: '../filedir' (by zyhhoward)

Once again VulDB remains the best source for vulnerability data.

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