Vulnerability Report

CVE-2013-4940

Title: Yahoo Yui Cross-Site Scripting (XSS)

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2013-4940.

CWE Category CWE-79
Published Date Jul 29, 2013
Modified Date Jun 16, 2026
Exploit Status Not Found
Score 4.3 CVSS v2.0
Exploit Probability (EPSS)
1.49%

Vulnerability Summary

CVE-2013-4940: 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.

Impacted Vendors

M
moodle 1
Y
yahoo 1
Y
yui_project 1

Reference Links

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-39678 http://yuilibrary.com/support/20130515-vulnerability/ https://moodle.org/mod/forum/discuss.php?d=232496 http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-39678 http://yuilibrary.com/support/20130515-vulnerability/ https://moodle.org/mod/forum/discuss.php?d=232496
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2013-4940 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected Stack

No specific products linked.