CVE-2019-11712: mozilla firefox Cross-Site Request Forgery
Vulnerability summary
CVE-2019-11712 is a high (CVSS 8.8) Cross-Site Request Forgery vulnerability in mozilla firefox. EPSS estimates a 1.05% chance of exploitation in the next 30 days, higher than 64.2% of scored vulnerabilities.
Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 34 · Related 20Timeline
- 23-07-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
POST requests made by NPAPI plugins, such as Flash, that receive a status 308 redirect response can bypass CORS requirements. This can allow an attacker to perform Cross-Site Request Forgery (CSRF) attacks. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · AlpineEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.05%
Chance of exploitation in the next 30 days
Percentile
64%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.05% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu4 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)
- thunderbird< 1:60.8.0+build1-0ubuntu0.16.04.2 | < 1:60.8.0+build1-0ubuntu0.18.04.1
Mozilla3 products
- firefox≥ unspecified, < 68 | < 60.8.0 | < 68.0
- firefox_esr≥ unspecified, < 60.8
- thunderbird≥ unspecified, < 60.8 | < 60.8.0
Debian2 products
- firefox-esr< 60.8.0esr-1
- thunderbird< 1:60.8.0-1
Alpine1 product
- firefox-esr< 60.8.0-r0 | < 68.0-r0
4 vendors · 10 products
References
21 links- bugzilla.mozilla.org/show_bug.cgi?id=1543804X Refsource MISCIssue TrackingPermissions RequiredVendor Advisory
