CVE Catalog

CVE-2026-12209

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.31%

24th percentile - higher than 24% of all known CVEs

Summary

RubyLouvre avalon up to version 2.2.10 has a vulnerability in src/filters/index.js allowing remote manipulation of object prototype attributes. An attacker can remotely modify prototype attributes, leading to uncontrolled object modification.

Risk Assessment

The organization is at risk of remote prototype pollution attacks, which can lead to privilege escalation or arbitrary code execution within the application context.

Recommendation

Update RubyLouvre avalon to the latest available version or apply a patch that prevents prototype manipulation.

Related vulnerabilities

Original NVD description (English source)

A security vulnerability has been detected in RubyLouvre avalon up to 2.2.10. The impacted element is an unknown function of the file src/filters/index.js of the component Template Filter Handler. Such manipulation leads to improperly controlled modification of object prototype attributes. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS