openbullet2 up to 0.3.2 Wordlist Endpoint path traversal

Summaryinfo

A vulnerability was found in openbullet2 up to 0.3.2. It has been rated as critical. Affected by this issue is some unknown functionality of the component Wordlist Endpoint. This manipulation causes path traversal. This vulnerability is handled as CVE-2026-25559. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in openbullet2 up to 0.3.2. Affected by this vulnerability is an unknown function of the component Wordlist Endpoint. The manipulation 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 confidentiality, integrity, and availability. The summary by CVE is:

OpenBullet2 through version 0.3.2 contains a path traversal vulnerability in the wordlist endpoint that allows authenticated attackers to perform arbitrary file read, write, and delete operations by supplying unsanitized absolute paths to the upload handler and wordlist functions. Attackers can chain the file write and delete primitives to achieve remote code execution by manipulating critical system files such as /etc/passwd, with full system impact since the application runs as root by default.

The weakness was released by Maksim Rogov. It is possible to read the advisory at hackernoon.com. This vulnerability is known as CVE-2026-25559 since 02/02/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/08/2026). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-35137). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• openbullet2

Version

• 0.3.0
• 0.3.1
• 0.3.2

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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