DavidOsipov Vision-ui up to 1.4.x weak prng

Summaryinfo

A vulnerability labeled as problematic has been found in DavidOsipov Vision-ui up to 1.4.x. This impacts an unknown function. The manipulation results in weak prng. This vulnerability was named CVE-2025-54883. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in DavidOsipov Vision-ui up to 1.4.x. Affected is an unknown part. The manipulation with an unknown input leads to a weak prng vulnerability. CWE is classifying the issue as CWE-338. The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong. This is going to have an impact on confidentiality. CVE summarizes:

Vision UI is a collection of enterprise-grade, dependency-free modules for modern web projects. In versions 1.4.0 and below, the getSecureRandomInt function in security-kit versions prior to 3.5.0 (packaged in Vision-ui <= 1.4.0) contains a critical cryptographic weakness. Due to a silent 32-bit integer overflow in its internal masking logic, the function fails to produce a uniform distribution of random numbers when the requested range between min and max is larger than 2³². The root cause is the use of a 32-bit bitwise left-shift operation (<<) to generate a bitmask for the rejection sampling algorithm. This causes the mask to be incorrect for any range requiring 32 or more bits of entropy. This issue is fixed in version 1.5.0.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-54883 since 07/31/2025. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001.

Upgrading to version 1.5.0 eliminates this vulnerability. Applying the patch 347355859f05e98047efbd96fc0e61b9191324f1 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• DavidOsipov

Name

• Vision-ui

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4

License

• open-source

Website

• Product: https://github.com/DavidOsipov/Vision-ui/

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