Quick answers
- Is CVE-2013-4941 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2013-4941 being exploited in the wild.
- How severe is CVE-2013-4941?
- Medium severity, with a CVSS score of 4, published 13 May 2022.
- Which products and versions are affected?
- Moodle 2.1.10 through 2.5.0.
- Is there a fix for CVE-2013-4941?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2013-4941 attacked?
- It is attacked over the network.
- Am I affected by CVE-2013-4941?
- Check whether you run Moodle at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A cross-site scripting (CWE-79) vulnerability exists in the uploader.swf Flash component of Yahoo! YUI's Uploader module (versions 3.2.0 through 3.9.1). The vulnerability is triggered when a crafted URL containing arbitrary JavaScript is passed to the component, which fails to properly sanitize or validate the input before rendering it. The attack is network-accessible and requires user interaction (a user must click or interact with the affected uploader component). Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of the victim's browser session, potentially leading to session hijacking or data theft. Patches are available in YUI 3.9.2 and later.
Affected products
- Yahoo YUI 3.2.0 through 3.9.1
- Moodle Moodle 2.1.10 through 2.5.0
Identifiers
- CVE-2013-4941
- GHSA-64r3-582j-frqm
Timeline
- 2013-07-29: disclosed: Vulnerability disclosed to NVD
- 2022-05-13: advisory: GitHub Security Advisory GHSA-64r3-582j-frqm published