CVE-2013-4940: YUI Cross-site Scripting (XSS) vulnerability

May 13, 2022 (updated April 12, 2025)

Cross-site scripting (XSS) vulnerability in io.swf in the IO Utility component in Yahoo! YUI 3.10.2, as used in Moodle through 2.1.10, 2.2.x before 2.2.11, 2.3.x before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.1, and other products, allows remote attackers to inject arbitrary web script or HTML via a crafted string in a URL. NOTE: this vulnerability exists because of a CVE-2013-4939 regression.

References

github.com/advisories/GHSA-x5hj-47vv-53p8
moodle.org/mod/forum/discuss.php?d=232496
nvd.nist.gov/vuln/detail/CVE-2013-4940
web.archive.org/web/20130909203912/http://yuilibrary.com/support/20130515-vulnerability

Code Behaviors & Features

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