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.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Out of support scope | ||
| Red Hat Enterprise Linux 5 | thunderbird | Out of support scope | ||
| Red Hat Enterprise Linux 6 | firefox | Fixed | RHSA-2020:0086 | 13.01.2020 |
| Red Hat Enterprise Linux 6 | thunderbird | Fixed | RHSA-2020:0123 | 16.01.2020 |
| Red Hat Enterprise Linux 7 | firefox | Fixed | RHSA-2020:0085 | 13.01.2020 |
| Red Hat Enterprise Linux 7 | thunderbird | Fixed | RHSA-2020:0120 | 16.01.2020 |
| Red Hat Enterprise Linux 8 | firefox | Fixed | RHSA-2020:0111 | 14.01.2020 |
| Red Hat Enterprise Linux 8 | thunderbird | Fixed | RHSA-2020:0127 | 16.01.2020 |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | thunderbird | Fixed | RHSA-2020:0292 | 30.01.2020 |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | firefox | Fixed | RHSA-2020:0295 | 30.01.2020 |
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Дополнительная информация
Статус:
6.1 Medium
CVSS3
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 e ...
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.
Уязвимость браузеров Firefox, Firefox ESR, связанная с непринятием мер по защите структуры веб-страницы, позволяющая нарушителю оказать воздействие на целостность данных
6.1 Medium
CVSS3