CVE-2020-6808
Last modified
CVE-2020-6808 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. When a JavaScript URL (javascript:) is evaluated and the result is a string, this string is parsed to create an HTML document, which is then presented. Previously, this document's URL (as reported by the document.location property, for example) was the originating javascript: URL which could lead to spoofing attacks; it is now correctly the URL of the originating document. EPSS estimates a 1.04% chance of exploitation in the next 30 days.
Description
When a JavaScript URL (javascript:) is evaluated and the result is a string, this string is parsed to create an HTML document, which is then presented. Previously, this document's URL (as reported by the document.location property, for example) was the originating javascript: URL which could lead to spoofing attacks; it is now correctly the URL of the originating document. This vulnerability affects Firefox < 74.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 74.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1247968Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1247968Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-6808?
How severe is CVE-2020-6808?
How do I fix CVE-2020-6808?
How Strix Helps
- Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-6802In Mozilla Bleach before 3.11, a mutation XSS affects users …6.1
- CVE-2020-6803An open redirect is present on the gateway's login page, whi…6.1
- CVE-2020-6804A reflected XSS vulnerability exists within the gateway, all…6.1
- CVE-2020-6805When removing data about an origin whose tab was recently cl…8.8
- CVE-2020-6806By carefully crafting promise resolutions, it was possible t…8.8
- CVE-2020-6807When a device was changed while a stream was about to be des…8.8
- CVE-2020-6809When a Web Extension had the all-urls permission and made a …7.5
- CVE-2020-6810After a website had entered fullscreen mode, it could have u…4.3
- CVE-2020-6811The 'Copy as cURL' feature of Devtools' network tab did not …8.8
- CVE-2020-6812The first time AirPods are connected to an iPhone, they beco…5.3
- CVE-2020-6813When protecting CSS blocks with the nonce feature of Content…5.3
- CVE-2020-6814Mozilla developers reported memory safety bugs present in Fi…9.8
Are you affected by CVE-2020-6808?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST