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githubGitHub Advisory DatabaseGHSA-GXR4-XJJ5-5PX2
HistoryApr 29, 2020 - 10:18 p.m.

Potential XSS vulnerability in jQuery

2020-04-2922:18:55
CWE-79
GitHub Advisory Database
github.com
2195

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.061 Low

EPSS

Percentile

93.4%

Impact

Passing HTML from untrusted sources - even after sanitizing it - to one of jQuery’s DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code.

Patches

This problem is patched in jQuery 3.5.0.

Workarounds

To workaround the issue without upgrading, adding the following to your code:

jQuery.htmlPrefilter = function( html ) {
	return html;
};

You need to use at least jQuery 1.12/2.2 or newer to be able to apply this workaround.

References

https://blog.jquery.com/2020/04/10/jquery-3-5-0-released/
https://jquery.com/upgrade-guide/3.5/

For more information

If you have any questions or comments about this advisory, search for a relevant issue in the jQuery repo. If you don’t find an answer, open a new issue.

References

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.061 Low

EPSS

Percentile

93.4%