CVE-2020-8264
Last modified
CVE-2020-8264 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. In actionpack gem >= 6.0.0, a possible XSS vulnerability exists when an application is running in development mode allowing an attacker to send or embed (in another page) a specially crafted URL which can allow the attacker to execute JavaScript in the context of the local application. This vulnerability is in the Actionable Exceptions middleware.. EPSS estimates a 70.72% chance of exploitation in the next 30 days.
Description
In actionpack gem >= 6.0.0, a possible XSS vulnerability exists when an application is running in development mode allowing an attacker to send or embed (in another page) a specially crafted URL which can allow the attacker to execute JavaScript in the context of the local application. This vulnerability is in the Actionable Exceptions middleware.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Rubyonrails | Rails | >= 6.0.0, < 6.0.3.4 |
References
- https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJMailing List, Third Party Advisory
- https://hackerone.com/reports/904059Exploit, Patch, Third Party Advisory
- https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJMailing List, Third Party Advisory
- https://hackerone.com/reports/904059Exploit, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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