CVE-2013-4939
MEDIUM · CVSS 4.3EPSS 1.5%EU EUVD
Cross-site scripting (XSS) vulnerability in io.swf in the IO Utility component in Yahoo! YUI 3.0.0 through 3.9.1, 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.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N- Weakness (CWE)
- CWE-79
- EPSS score
- 1.5% (74th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2020-1179)
- Published
- July 29, 2013
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2020-1179 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- moodle / moodle
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
- yahoo / yui
and 8 more…
References
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-39678
- http://yuilibrary.com/support/20130515-vulnerability/(Patch, Vendor Advisory)
- https://lists.apache.org/thread.html/72837f969cdf9b63a7e7337edd069fa3b3950eea7c997cc2ff61aa0c%40%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/d8b9403dbab85a51255614949938b619bd03b1c944c76c48c6996a0e%40%3Cdev.zookeeper.apache.org%3E
- https://moodle.org/mod/forum/discuss.php?d=232496(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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