CVEvulnerability

CVE-2026-19913

7.5 HIGH Published 2026-08-25 Modified 2026-09-03 Official page ↗
Status
Awaiting Analysis
Published
2026-08-25
Last modified
2026-09-03
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-20, CWE-73

Description

The Kaltura HTML5 player (mwEmbed / html5lib) contains a local file disclosure vulnerability due to improper validation of the ServiceUrl parameter in mwEmbedLoader.php. This parameter is used as the base URL for a backend request and accepts non‑HTTP schemes such as file://. When an exception or error occurs, the response is subsequently deserialized and its raw contents are reflected to the client in an error message; this enables an unauthenticated, remote attacker to read any arbitrary internal file reachable by the server. Affected versions include html5lib v2.45, v2.103 and earlier, and other v2.x releases exposing the vulnerable endpoint.

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-73 External Control of File Name or Path weakness

References