Medium severity · published Oct 1, 2020
CVE-2020-15676
Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data…
6.1
CVSS
1.6%
EPSS
No
On KEV
Description
Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 81.0 · source: NVD
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
FE
Firefox Esr · Mozilla
before 78.3 · source: NVD
LE
Leap · Opensuse
15.1; 15.2 · source: NVD
TH
Thunderbird · Mozilla
before 78.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15676
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-15676
Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html
Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1646140
Mailing List
https://lists.debian.org/debian-lts-announce/2020/10/msg00020.html
Third Party Advisory
https://security.gentoo.org/glsa/202010-02
Third Party Advisory
https://www.debian.org/security/2020/dsa-4770
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