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CVE-2016-4567: MediaElement Vulnerable to Reflected XSS

May 17, 2022 (updated April 25, 2024)

Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.swf in MediaElement.js before 2.21.0, as used in WordPress before 4.5.2, allows remote attackers to inject arbitrary web script or HTML via an obfuscated form of the jsinitfunction parameter, as demonstrated by “jsinitfunctio%gn.”

References

  • codex.wordpress.org/Version_4.5.2
  • contao.org/en/news/contao-3_5_15.html
  • core.trac.wordpress.org/changeset/37371
  • gist.github.com/cure53/df34ea68c26441f3ae98f821ba1feb9c
  • github.com/FriendsOfPHP/security-advisories/blob/master/contao-components/mediaelement/CVE-2016-4567.yaml
  • github.com/FriendsOfPHP/security-advisories/blob/master/contao/core/CVE-2016-4567.yaml
  • github.com/advisories/GHSA-277w-qpxr-2549
  • github.com/johndyer/mediaelement/blob/master/changelog.md
  • github.com/johndyer/mediaelement/commit/34834eef8ac830b9145df169ec22016a4350f06e
  • github.com/mediaelement/mediaelement/blob/b992ccf5f0c04a207d98bbb0868420751a61ec90/changelog.md?plain=1
  • github.com/mediaelement/mediaelement/blob/master/changelog.md
  • github.com/mediaelement/mediaelement/commit/34834eef8ac830b9145df169ec22016a4350f06e
  • nvd.nist.gov/vuln/detail/CVE-2016-4567
  • web.archive.org/web/20170205142412/http://www.securitytracker.com/id/1035818
  • wordpress.org/news/2016/05/wordpress-4-5-2
  • wpvulndb.com/vulnerabilities/8488

Code Behaviors & Features

Detect and mitigate CVE-2016-4567 with GitLab Dependency Scanning

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Affected versions

All versions before 2.11.1

Fixed versions

  • 2.11.1

Solution

Upgrade to version 2.11.1 or above.

Impact 6.1 MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

npm/mediaelement/CVE-2016-4567.yml

Spotted a mistake? Edit the file on GitLab.

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