Use of insecure jQuery version in OctoberCMS

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

Issue has been patched in Build 466 (v1.0.466) by applying the recommended patch from @jquery.

Workarounds

Apply https://github.com/octobercms/october/commit/5c7ba9fbe9f2b596b2f0e3436ee06b91b97e5892 to your installation manually if unable to upgrade to Build 466.

References

• https://github.com/jquery/jquery/security/advisories/GHSA-gxr4-xjj5-5px2
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11022
• https://jquery.com/upgrade-guide/3.5/

For more information

If you have any questions or comments about this advisory:

• Email us at [email protected] & [email protected]

Threat Assessment

Assessed as Moderate by the @jquery team.

Acknowledgements

Thanks to @mrgswift for reporting the issue to the October CMS team.