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CVE-2026-56877 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

The SCORM lab launch endpoint in Skillable (scorm.skillable.com) through 2026-07-13 does not validate the client-supplied userId parameter against the authenticated SCORM session token. An authenticated user can substitute arbitrary userId values to bypass per-user lab launch rate limits and consume other users' lab allocations, resulting in denial of service against targeted users' lab and exam access. Skillable was formerly named Learn on Demand Systems.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CNA: [email protected]CVSS-B:6.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://seclists.org/fulldisclosure/2026/Jul/20	CVE
http://www.openwall.com/lists/oss-security/2026/07/12/1	CVE
http://www.openwall.com/lists/oss-security/2026/07/12/2	CVE
https://www.openwall.com/lists/oss-security/2026/07/12/1	[email protected]	Mailing ListTechnical Description
https://www.skillable.com/security/	[email protected]	Vendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-472	External Control of Assumed-Immutable Web Parameter	[email protected]

Affected Products

Product	Versions
Skillable	All versions
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jul 16, 2026	CVE Modified	CVE
Jul 14, 2026	CVE Modified	CISA-ADP
Jul 13, 2026	CVE Modified	CVE
Jul 13, 2026	New CVE Received	[email protected]