vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2020-12392

MEDIUM
5.5
CVSS Score
Published: May 26, 2020 at 05:01 PM UTC
Updated: June 17, 2026 at 02:51 AM UTC
4 products affected across 2 vendorsUbuntu LinuxFirefoxThunderbird

Using Firefox ESR by Mozilla?

Get instant alerts when new vulnerabilities affect Firefox ESR - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

Description

The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP POST data of a request, which can be controlled by the website. If a user used the 'Copy as cURL' feature and pasted the command into a terminal, it could have resulted in the disclosure of local files. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
16.0418.0419.1020.04
Firefox· Mozilla
95%
v < 76v < 76.0
Affected range stops below 76, so it looks safe — our inference, not a vendor statement
Affected range stops below 76.0, so it looks safe — our inference, not a vendor statement
Firefox ESR· Mozilla
95%
v < 68.8v < 68.8.0
Affected range stops below 68.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 68.8.0, so it looks safe — our inference, not a vendor statement
Thunderbird· Mozilla
95%
v < 68.8.0
Affected range stops below 68.8.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (7)

x_refsource_MISCIssue TrackingPermissions Required
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1614468
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202005-03
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202005-04
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4373-1/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-16/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-17/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-18/

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card