EUVD-2026-65614
GHSA-537c-gp6x-jr7q
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (certcc) · only source for this CVE.
CVSS VectorVendor: certcc
Lifecycle Timeline
4DescriptionCVE.org
The Kaltura HTML5 player (mwEmbed / html5lib) contains an unauthenticated remote code execution vulnerability caused by unsafe data deserialization and unsanitized filesystem path construction. mwEmbedLoader.php accepts a user‑controlled ServiceUrl, whose response is passed to unserialize(), and the resulting object’s fields are written to a cache path derived from attacker‑supplied uiconf_id without proper path validation. An attacker can write arbitrary files into web‑accessible locations and achieve code execution as the webserver user. Affected versions include html5lib v2.45, v2.103 and earlier, and other v2.x releases exposing the vulnerable endpoint.
AnalysisAI
Analysis complete. The JSON synthesis above covers CVE-2026-19912 (Kaltura HTML5 Player unauthenticated RCE). …
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External POC / Exploit Code
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