CVE-2019-11723: mozilla firefox Origin Validation Error
Vulnerability summary
CVE-2019-11723 is a high (CVSS 7.5) Origin Validation Error vulnerability in mozilla firefox. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 13 · Related 11Timeline
- 23-07-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A vulnerability exists during the installation of add-ons where the initial fetch ignored the origin attributes of the browsing context. This could leak cookies in private browsing mode or across different "containers" for people who use the Firefox Multi-Account Containers Web Extension. This vulnerability affects Firefox < 68.
CVSS metrics
4 scores · 2 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.81%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.81% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu3 products
- firefox< 68.0+build3-0ubuntu0.16.04.1 | < 68.0+build3-0ubuntu0.18.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
Mozilla1 product
- firefox≥ unspecified, < 68 | < 68.0
Opensuse1 product
- leapEOL15.0 | 15.1
3 vendors · 5 products
References
11 links- bugzilla.mozilla.org/show_bug.cgi?id=1528335X Refsource MISCIssue TrackingPermissions RequiredVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory