CVE-2019-17022
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- CVE-2019-17022
CVE Details
| Release Date: | 2020-01-08 | |
| Impact: | None | What is this? |
Description
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.
See more information about CVE-2019-17022 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 6.1 |
| Vector String: | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| Version: | 3.0 |
| Attack Vector: | Network |
| Attack Complexity: | Low |
| Privileges Required: | None |
| User Interaction: | Required |
| Scope: | Changed |
| Confidentiality Impact: | Low |
| Integrity Impact: | Low |
| Availability Impact: | None |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 6 (firefox) | ELSA-2020-0086 | 2020-07-07 |
| Oracle Linux version 6 (thunderbird) | ELSA-2020-0123 | 2020-07-07 |
| Oracle Linux version 7 (firefox) | ELSA-2020-0085 | 2020-01-13 |
| Oracle Linux version 7 (thunderbird) | ELSA-2020-0120 | 2020-01-16 |
| Oracle Linux version 8 (firefox) | ELSA-2020-0111 | 2020-01-15 |
| Oracle Linux version 8 (thunderbird) | ELSA-2020-0127 | 2020-01-18 |
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