Описание
When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer does not escape < and > characters. Because the resulting string is pasted directly into the text node of the element this does not result in a direct injection into the webpage; however, if a webpage subsequently copies the node's innerHTML, assigning it to another innerHTML, this would result in an XSS vulnerability. Two WYSIWYG editors were identified with this behavior, more may exist. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer does not escape < and > characters. Because the resulting string is pasted directly into the text node of the element this does not result in a direct injection into the webpage; however, if a webpage subsequently copies the node's innerHTML, assigning it to another innerHTML, this would result in an XSS vulnerability. Two WYSIWYG editors were identified with this behavior, more may exist. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2019-17022
- https://www.mozilla.org/security/advisories/mfsa2020-02
- https://www.mozilla.org/security/advisories/mfsa2020-01
- https://www.debian.org/security/2020/dsa-4603
- https://www.debian.org/security/2020/dsa-4600
- https://usn.ubuntu.com/4241-1
- https://usn.ubuntu.com/4234-1
- https://seclists.org/bugtraq/2020/Jan/26
- https://seclists.org/bugtraq/2020/Jan/18
- https://seclists.org/bugtraq/2020/Jan/12
- https://lists.debian.org/debian-lts-announce/2020/01/msg00016.html
- https://lists.debian.org/debian-lts-announce/2020/01/msg00005.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1602843
- https://access.redhat.com/errata/RHSA-2020:0127
- https://access.redhat.com/errata/RHSA-2020:0123
- https://access.redhat.com/errata/RHSA-2020:0120
- https://access.redhat.com/errata/RHSA-2020:0111
- https://access.redhat.com/errata/RHSA-2020:0086
- https://access.redhat.com/errata/RHSA-2020:0085
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html
- http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html
EPSS
CVE ID
Связанные уязвимости
When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer does not escape < and > characters. Because the resulting string is pasted directly into the text node of the element this does not result in a direct injection into the webpage; however, if a webpage subsequently copies the node's innerHTML, assigning it to another innerHTML, this would result in an XSS vulnerability. Two WYSIWYG editors were identified with this behavior, more may exist. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer does not escape < and > characters. Because the resulting string is pasted directly into the text node of the element this does not result in a direct injection into the webpage; however, if a webpage subsequently copies the node's innerHTML, assigning it to another innerHTML, this would result in an XSS vulnerability. Two WYSIWYG editors were identified with this behavior, more may exist. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer does not escape < and > characters. Because the resulting string is pasted directly into the text node of the element this does not result in a direct injection into the webpage; however, if a webpage subsequently copies the node's innerHTML, assigning it to another innerHTML, this would result in an XSS vulnerability. Two WYSIWYG editors were identified with this behavior, more may exist. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
When pasting a <style> tag from the clipboard into a rich text e ...
Уязвимость браузеров Firefox, Firefox ESR, связанная с непринятием мер по защите структуры веб-страницы, позволяющая нарушителю оказать воздействие на целостность данных
EPSS