XSS in Viewcomponent View_component
CVE-2026-54498
view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 4.0.0 until 4.12.0, ViewComponent::Base#around_render can return HTML-unsafe strings that bypass the escaping behavior a…
Vulnerability class: XSS (Cross-Site Scripting)
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.
Affected products
- Viewcomponent View_component — versions >= 4.0.0, < 4.12.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-54498?
- CVE-2026-54498 is a high-severity vulnerability in Viewcomponent View_component, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-07-17.
- How severe is CVE-2026-54498?
- High severity. CVSS v3 base score is 8.7 out of 10.