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CVE-2013-4940

MEDIUM · CVSS 4.3EPSS 1.5%EU EUVD

Cross-site scripting (XSS) vulnerability in io.swf in the IO Utility component in Yahoo! YUI 3.10.2, 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.

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-2013-4784)
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-2013-4784 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
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  • moodle / moodle
  • moodle / moodle
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  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
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  • moodle / moodle
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  • moodle / moodle
  • moodle / moodle
  • moodle / moodle
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  • 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

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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