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Cross-site Scripting (XSS) Affecting thunderbird package, versions <1:68.4.1-1

Severity

 Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.24% (65th percentile)

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  • Snyk ID SNYK-DEBIAN12-THUNDERBIRD-1561334
  • published 7 Jan 2020
  • disclosed 8 Jan 2020
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Introduced: 7 Jan 2020

CVE-2019-17022 Open this link in a new tab
CWE-79 Open this link in a new tab

How to fix?

Upgrade Debian:12 thunderbird to version 1:68.4.1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer does not escape &lt; and &gt; 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.

References

CVSS Scores

version 3.1
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NVD

Recommended
6.1 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Changed
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None
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SUSE

6.1 medium