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nvd[email protected]NVD:CVE-2020-26956
HistoryDec 09, 2020 - 1:15 a.m.

CVE-2020-26956

2020-12-0901:15:12
CWE-79
[email protected]
web.nvd.nist.gov

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.6%

JSON

In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to XSS. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Affected configurations

NVD
Node
mozillafirefoxRange<83.0
OR
mozillafirefox_esrRange<78.5
OR
mozillathunderbirdRange<78.5

Related

prion 1
alpinelinux 1
cve 1
ubuntucve 1
veracode 1
cvelist 1
debiancve 1
redhatcve 1
oraclelinux 6
nessus 57
openvas 22
osv 6
redhat 12
gentoo 2
mageia 2
centos 2
debian 4
altlinux 2
mozilla 3
suse 5
ibm 1
kaspersky 3
ubuntu 3
archlinux 1
amazon 1
rosalinux 1
prion
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2020-12-09 01:15:00
alpinelinux
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2020-12-09 01:15:12
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veracode
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Cross-Site Scripting (XSS)
2020-11-20 09:57:40
cvelist
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2020-12-09 00:21:39
debiancve
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redhatcve
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2020-11-18 01:09:03
oraclelinux
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thunderbird security update
2020-12-01 00:00:00
firefox security update
2020-12-01 00:00:00
firefox security update
2020-12-01 00:00:00
nessus
nessus
RHEL 7 : firefox (RHSA-2020:5239)
2020-12-01 00:00:00
CentOS 8 : firefox (CESA-2020:5237)
2021-02-01 00:00:00
Oracle Linux 6 : firefox (ELSA-2020-5257)
2021-02-04 00:00:00
openvas
openvas
Mageia: Security Advisory (MGASA-2020-0433)
2022-01-28 00:00:00
CentOS: Security Advisory for thunderbird (CESA-2020:5235)
2020-12-10 00:00:00
Mozilla Thunderbird Security Advisories (MFSA2020-50, MFSA2020-52) - Mac OS X
2020-11-18 00:00:00
osv
osv
firefox-esr - security update
2020-11-19 00:00:00
firefox-esr - security update
2020-11-18 00:00:00
thunderbird - security update
2020-11-23 00:00:00
redhat
redhat
(RHSA-2020:5233) Important: firefox security update
2020-11-30 08:15:53
(RHSA-2020:5240) Important: thunderbird security update
2020-11-30 08:20:40
(RHSA-2020:5231) Important: thunderbird security update
2020-11-30 08:15:46
gentoo
gentoo
Mozilla Firefox: Multiple vulnerabilities
2020-12-07 00:00:00
Mozilla Thunderbird: Multiple vulnerabilities
2020-12-07 00:00:00
mageia
mageia
Updated thunderbird packages fix security vulnerabilities
2020-11-21 15:21:00
Updated firefox and nss packages fix security vulnerabilities
2020-11-19 11:52:41
centos
centos
firefox security update
2020-12-09 20:21:57
thunderbird security update
2020-12-09 20:24:41
debian
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[SECURITY] [DLA 2457-1] firefox-esr security update
2020-11-19 10:07:14
[SECURITY] [DSA 4796-1] thunderbird security update
2020-11-21 18:32:57
[SECURITY] [DSA 4793-1] firefox-esr security update
2020-11-18 18:44:22
altlinux
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Security fix for the ALT Linux 10 package thunderbird version 78.5.0-alt1
2020-11-19 00:00:00
Security fix for the ALT Linux 10 package firefox-esr version 78.5.0-alt1
2020-11-16 00:00:00
mozilla
mozilla
Security Vulnerabilities fixed in Firefox ESR 78.5 — Mozilla
2020-11-17 00:00:00
Security Vulnerabilities fixed in Thunderbird 78.5 — Mozilla
2020-11-17 00:00:00
Security Vulnerabilities fixed in Firefox 83 — Mozilla
2020-11-17 00:00:00
suse
suse
Security update for MozillaFirefox (important)
2020-12-22 00:00:00
Security update for MozillaThunderbird (important)
2020-11-28 00:00:00
Security update for MozillaFirefox (important)
2020-11-26 00:00:00
ibm
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Security Bulletin: Multiple vulnerabilities of Mozilla Firefox (less than Firefox 78.5 ESR + CVE-2020-26951) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF11 + ICAM2019.3.0 - 2020.2.0
2021-02-25 07:21:06
kaspersky
kaspersky
KLA12012 Multiple vulnerabilities in Mozilla Thunderbird
2020-11-17 00:00:00
KLA12010 Multiple vulnerabilities in Mozilla Firefox
2020-11-17 00:00:00
KLA12011 Multiple vulnerabilities in Mozilla Firefox ESR
2020-11-17 00:00:00
ubuntu
ubuntu
Thunderbird vulnerabilities
2020-11-25 00:00:00
Firefox vulnerabilities
2020-11-18 00:00:00
Firefox vulnerabilities
2020-11-19 00:00:00
archlinux
archlinux
[ASA-202011-12] firefox: multiple issues
2020-11-17 00:00:00
amazon
amazon
Important: thunderbird
2021-01-05 23:35:00
rosalinux
rosalinux
Advisory ROSA-SA-2021-1835
2021-07-02 16:43:38

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.6%

JSON
Related for NVD:CVE-2020-26956
prion1alpinelinux1cve1ubuntucve1veracode1cvelist1debiancve1redhatcve1oraclelinux6nessus57openvas22osv6redhat12gentoo2mageia2centos2debian4altlinux2mozilla3suse5ibm1kaspersky3ubuntu3archlinux1amazon1rosalinux1