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CVE-2016-4567

MediaElement Vulnerable to Reflected XSS

6.1 MediumFix available

CVE-2016-4567 is a medium vulnerability (CVSS 6.1) in Mediaelementjs Mediaelement.js, published May 22, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.35%, the 94th percentile. Fixed in mediaelement 2.11.1.

Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as 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."

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

7.35%Up 5.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.1

Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as 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."

Record
CVE-2016-4567
CVSS 3.0
6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List No score

Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as 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."

Record
CVE-2016-4567
Updated
2026-11-02
EUVDEUVD-2022-1928 No score

Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as 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."

Record
EUVD-2022-1928
Updated
2026-11-03
GitHub AdvisoriesGHSA-277w-qpxr-2549 6.1

MediaElement Vulnerable to Reflected XSS

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."

Record
GHSA-277w-qpxr-2549
CVSS 3.0
6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 6.1

Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as 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."

Record
CVE-2016-4567
CVSS 3.0
6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2016-4567 6.1

Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as 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."

Record
DEBIAN-CVE-2016-4567
CVSS 3.0
6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVGHSA-277w-qpxr-2549 6.1

MediaElement Vulnerable to Reflected XSS

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."

Record
GHSA-277w-qpxr-2549
CVSS 3.0
6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSVUBUNTU-CVE-2016-4567 6.1

Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as 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."

Record
UBUNTU-CVE-2016-4567
CVSS 3.0
6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
mediaelement
npm
 before 2.11.1
2.11.1
contao-components/mediaelement
Packagist
 2.14.2 up to 2.21.1
2.21.1
contao/core
Packagist
 3.0.0 up to 3.5.15
3.5.15
mediaelement
Debian:12
 All versions, plus listed versions
2.15.1+dfsg-3
 None known
mediaelement
Debian:13
 All versions, plus listed versions
2.15.1+dfsg-3
 None known
mediaelement
Debian:14
 All versions, plus listed versions
2.15.1+dfsg-3
 None known
contao-components/mediaelement
Packagist
 2.14.2 up to 2.21.1, plus listed versions
2.15.02.15.12.15.1.12.16.02.16.1
Show 13 moreShow less
2.16.22.16.32.16.42.17.02.18.02.18.12.18.22.19.02.19.0.12.19.0.22.20.02.20.12.21.0
2.21.1
contao/core
Packagist
 3.0.0 up to 3.5.15, plus listed versions
3.0.13.0.23.0.33.0.43.0.5
Show 45 moreShow less
3.0.63.1.03.1.13.1.23.1.33.1.43.1.53.1.RC13.1.beta13.2.03.2.13.2.103.2.113.2.123.2.133.2.143.2.153.2.163.2.173.2.183.2.193.2.23.2.203.2.213.2.33.2.43.2.53.2.63.2.73.2.83.2.93.2.RC13.2.beta13.2.beta23.3.03.3.0-RC13.3.0-RC23.3.0-beta13.3.13.3.23.3.33.3.43.3.53.3.63.3.7
3.5.15
mediaelement
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.15.1+dfsg-1
 None known
mediaelement
Ubuntu:18.04:LTS
 All versions, plus listed versions
2.15.1+dfsg-1
 None known
Show 6 moreShow less
Affected packages
PackageAffectedFixed
mediaelement
Ubuntu:20.04:LTS
 All versions, plus listed versions
2.15.1+dfsg-12.15.1+dfsg-1ubuntu1
 None known
mediaelement
Ubuntu:22.04:LTS
 All versions, plus listed versions
2.15.1+dfsg-3
 None known
mediaelement
Ubuntu:24.04:LTS
 All versions, plus listed versions
2.15.1+dfsg-3
 None known
mediaelement
Ubuntu:25.10
 All versions, plus listed versions
2.15.1+dfsg-3
 None known
mediaelement
Ubuntu:26.10
 All versions, plus listed versions
2.15.1+dfsg-3build1
 None known
mediaelement
Ubuntu:26.04:LTS
 All versions, plus listed versions
2.15.1+dfsg-32.15.1+dfsg-3build1
 None known

History

History
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

Show 16 moreShow less
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