CVE-2016-4567: n/a vulnerability

CVE-2016-4567: Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as in MediaElement.js before 2.21.0, as...

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."

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 00:32 UTC (UTC+00:00)

Security readout for executives and security teams

This is a cross-site scripting issue in MediaElement.js, a media player library included in WordPress. A remote attacker could inject script or HTML through an obfuscated jsinitfunction parameter. WordPress addressed it in version 4.5.2, and MediaElement.js fixed it before 2.21.0. Exposure is most likely on legacy WordPress installations before 4.5.2 or applications bundling MediaElement.js before 2.21.0, especially where the Flash media fallback remains reachable. Treat this as a patch hygiene issue for legacy web assets. It is not supported by active exploitation evidence in the provided sources, but exposed outdated WordPress or MediaElement.js deployments should be remediated promptly. Mitigation focus: Upgrade WordPress installations to 4.5.2 or later, preferably a current supported release.; Update MediaElement.js to 2.21.0 or later where it is bundled separately.; Inventory embedded or vendored MediaElement.js copies in themes, plugins, and custom applications..

Prepared: Jun 13, 2026, 14:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2016-4567 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 22, 2016, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

8Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/johndyer/mediaelement/blob/master/changelog.mdCVE reference · x_refsource_CONFIRM
https://codex.wordpress.org/Version_4.5.2CVE reference · x_refsource_CONFIRM
https://gist.github.com/cure53/df34ea68c26441f3ae98f821ba1feb9cCVE reference · x_refsource_MISC
https://github.com/johndyer/mediaelement/commit/34834eef8ac830b9145df169ec22016a4350f06eCVE reference · x_refsource_CONFIRM
https://wpvulndb.com/vulnerabilities/8488CVE reference · x_refsource_MISC
https://wordpress.org/news/2016/05/wordpress-4-5-2/CVE reference · x_refsource_CONFIRM
https://core.trac.wordpress.org/changeset/37371CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.