CVE-2020-6808
published 2020-03-25CVE-2020-6808: 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…
PriorityP427medium6.5CVSS 3.1
AVNACLPRNUIRSUCNIHAN
EPSS
1.04%
59.8th percentile
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.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 74.0-1 (sid) | firefox 74.0-1 (sid) |
| mozilla | firefox | < 74.0 | 74.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 74.0+build3-0ubuntu0.16.04.1 | 74.0+build3-0ubuntu0.16.04.1 |
| mozilla | firefox | >= 0 < 74.0+build3-0ubuntu0.18.04.1 | 74.0+build3-0ubuntu0.18.04.1 |
| mozilla | firefox | >= 0 < 74.0+build3-0ubuntu1 | 74.0+build3-0ubuntu1 |
| mozilla | firefox | >= unspecified < 74 | 74 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
vendor_ubuntu6.5MEDIUM
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GHSA
GHSA-5c26-qqvr-j75w: 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
ghsa_unreviewed·2022-05-24
CVE-2020-6808 [MEDIUM] GHSA-5c26-qqvr-j75w: 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
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.
OSV
firefox vulnerabilities
osv·2020-03-11·CVSS 6.5
CVE-2019-20503 [MEDIUM] firefox vulnerabilities
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, spoof the URL or
other browser chrome, obtain sensitive information, bypass Content
Security Policy (CSP) protections, or execute arbitrary code.
(CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807,
CVE-2020-6808, CVE-2020-6810, CVE-2020-6812, CVE-2020-6813, CVE-2020-6814,
CVE-2020-6815)
It was discovered that Web Extensions with the all-url permission could
access local files. If a user were tricked in to installing a specially
crafted extension, an attacker could potentially exploit this to obtain
sensitive information. (CVE-2020-6809)
It was discovered that the
OSV
CVE-2020-6808: 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
osv·2020-03-11·CVSS 6.5
CVE-2020-6808 [MEDIUM] CVE-2020-6808: 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
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.
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2020-03-11·CVSS 6.5
CVE-2019-20503 [MEDIUM] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, spoof the URL or
other browser chrome, obtain sensitive information, bypass Content
Security Policy (CSP) protections, or execute arbitrary code.
(CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807,
CVE-2020-6808, CVE-2020-6810, CVE-2020-6812, CVE-2020-6813, CVE-2020-6814,
CVE-2020-6815)
It was discovered that Web Extensions with the all-url permission could
access local files. If a user were tricked in to installing a specially
crafted extension, an attac
Red Hat
Mozilla: URL Spoofing via javascript: URL
vendor_redhat·2020-03-10·CVSS 6.5
CVE-2020-6808 [MEDIUM] CWE-451 Mozilla: URL Spoofing via javascript: URL
Mozilla: URL Spoofing via javascript: URL
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.
Package: firefox (Red Hat Enterprise Linux 5) - Out of support scope
Package: firefox (Red Hat Enterprise Linux 6) - Out of support scope
Package: firefox (Red Hat Enterprise Linux 7) - Will not fix
Package: firefox (Red Hat Enterprise Linux 8) - Will not fix
Debian
CVE-2020-6808: firefox - When a JavaScript URL (javascript:) is evaluated and the result is a string, thi...
vendor_debian·2020·CVSS 6.5
CVE-2020-6808 [MEDIUM] CVE-2020-6808: firefox - When a JavaScript URL (javascript:) is evaluated and the result is a string, thi...
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.
Scope: local
sid: resolved (fixed in 74.0-1)
Mozilla
Mozilla Foundation Security Advisory 2020-08: CVE-2020-6808
vendor_mozilla·CVSS 6.5
CVE-2020-6808 [MEDIUM] Mozilla Foundation Security Advisory 2020-08: CVE-2020-6808
Mozilla Foundation Security Advisory 2020-08
CVE: CVE-2020-6808
Product: Firefox
Impact: high
Fixed in: Firefox 74
No detection rules found.
No public exploits indexed.
2020-03-25
Published