CVE-2020-6798

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on the browser behaving correctly could suffer a cross-site scripting vulnerability as a result. In general, this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but is potentially a risk in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1602944

https://security.gentoo.org/glsa/202003-02

https://security.gentoo.org/glsa/202003-10

https://usn.ubuntu.com/4278-2/

https://www.mozilla.org/security/advisories/mfsa2020-05/

https://www.mozilla.org/security/advisories/mfsa2020-06/

https://www.mozilla.org/security/advisories/mfsa2020-07/

Details

Source: MITRE

Published: 2020-03-02

Updated: 2020-03-12

Type: CWE-79

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Impact Score: 2.7

Exploitability Score: 2.8

Severity: MEDIUM

Tenable Plugins

View all (50 total)

IDNameProductFamilySeverity
150679SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14290-1)NessusSuSE Local Security Checks
high
147407NewStart CGSL MAIN 4.06 : firefox Multiple Vulnerabilities (NS-SA-2021-0004)NessusNewStart CGSL Local Security Checks
critical
147312NewStart CGSL MAIN 4.06 : thunderbird Multiple Vulnerabilities (NS-SA-2021-0002)NessusNewStart CGSL Local Security Checks
critical
145993CentOS 8 : thunderbird (CESA-2020:0577)NessusCentOS Local Security Checks
high
145935CentOS 8 : firefox (CESA-2020:0512)NessusCentOS Local Security Checks
high
143979NewStart CGSL CORE 5.05 / MAIN 5.05 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0093)NessusNewStart CGSL Local Security Checks
critical
143948NewStart CGSL CORE 5.05 / MAIN 5.05 : firefox Multiple Vulnerabilities (NS-SA-2020-0097)NessusNewStart CGSL Local Security Checks
critical
140291NewStart CGSL MAIN 4.05 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0046)NessusNewStart CGSL Local Security Checks
critical
140283NewStart CGSL MAIN 4.05 : firefox Multiple Vulnerabilities (NS-SA-2020-0047)NessusNewStart CGSL Local Security Checks
critical
136909NewStart CGSL CORE 5.04 / MAIN 5.04 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0025)NessusNewStart CGSL Local Security Checks
high
136906NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2020-0026)NessusNewStart CGSL Local Security Checks
high
135896Ubuntu 16.04 LTS : Thunderbird vulnerabilities (USN-4335-1)NessusUbuntu Local Security Checks
critical
135455Ubuntu 18.04 LTS / 19.10 : Thunderbird vulnerabilities (USN-4328-1)NessusUbuntu Local Security Checks
critical
134899Amazon Linux 2 : thunderbird (ALAS-2020-1408)NessusAmazon Linux Local Security Checks
high
134587GLSA-202003-10 : Mozilla Thunderbird: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
134469GLSA-202003-02 : Mozilla Firefox: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
134090CentOS 7 : thunderbird (CESA-2020:0576)NessusCentOS Local Security Checks
high
134089CentOS 6 : thunderbird (CESA-2020:0574)NessusCentOS Local Security Checks
high
134072Scientific Linux Security Update : thunderbird on SL7.x x86_64 (20200224)NessusScientific Linux Local Security Checks
high
134071Scientific Linux Security Update : thunderbird on SL6.x i386/x86_64 (20200224)NessusScientific Linux Local Security Checks
high
134032RHEL 8 : thunderbird (RHSA-2020:0577)NessusRed Hat Local Security Checks
high
134031RHEL 7 : thunderbird (RHSA-2020:0576)NessusRed Hat Local Security Checks
high
134029RHEL 6 : thunderbird (RHSA-2020:0574)NessusRed Hat Local Security Checks
high
134021Oracle Linux 7 : thunderbird (ELSA-2020-0576)NessusOracle Linux Local Security Checks
high
133943RHEL 8 : thunderbird (RHSA-2020:0565)NessusRed Hat Local Security Checks
high
133849Mozilla Firefox ESR < 68.5 Multiple VulnerabilitiesNessusMacOS X Local Security Checks
high
133769CentOS 6 : firefox (CESA-2020:0521)NessusCentOS Local Security Checks
high
133768CentOS 7 : firefox (CESA-2020:0520)NessusCentOS Local Security Checks
high
133762SUSE SLED12 / SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:0384-1)NessusSuSE Local Security Checks
high
133761SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:0383-1)NessusSuSE Local Security Checks
high
133760openSUSE Security Update : MozillaThunderbird (openSUSE-2020-231)NessusSuSE Local Security Checks
high
133759openSUSE Security Update : MozillaFirefox (openSUSE-2020-230)NessusSuSE Local Security Checks
high
133755Scientific Linux Security Update : firefox on SL7.x x86_64 (20200217)NessusScientific Linux Local Security Checks
high
133753RHEL 6 : firefox (RHSA-2020:0521)NessusRed Hat Local Security Checks
high
133752RHEL 7 : firefox (RHSA-2020:0520)NessusRed Hat Local Security Checks
high
133751RHEL 8 : firefox (RHSA-2020:0519)NessusRed Hat Local Security Checks
high
133747RHEL 8 : firefox (RHSA-2020:0512)NessusRed Hat Local Security Checks
high
133745Oracle Linux 7 : firefox (ELSA-2020-0520)NessusOracle Linux Local Security Checks
high
133732Debian DSA-4625-1 : thunderbird - security updateNessusDebian Local Security Checks
high
133728Debian DLA-2104-1 : thunderbird security updateNessusDebian Local Security Checks
high
133715Ubuntu 18.04 LTS / 19.10 : Firefox vulnerabilities (USN-4278-1)NessusUbuntu Local Security Checks
high
133697Debian DLA-2102-1 : firefox-esr security updateNessusDebian Local Security Checks
high
133693Mozilla Firefox < 73.0NessusWindows
high
133692Mozilla Firefox < 73.0NessusMacOS X Local Security Checks
high
133691Mozilla Thunderbird < 68.5NessusWindows
high
133690Mozilla Thunderbird < 68.5NessusMacOS X Local Security Checks
high
133677Mozilla Firefox ESR < 68.5 Multiple VulnerabilitiesNessusWindows
high
133657Debian DSA-4620-1 : firefox-esr - security updateNessusDebian Local Security Checks
high
133643Slackware 14.2 / current : mozilla-thunderbird (SSA:2020-042-02)NessusSlackware Local Security Checks
high
133642Slackware 14.2 / current : mozilla-firefox (SSA:2020-042-01)NessusSlackware Local Security Checks
high