Answer in brief
CVE-2026-123655 records a High severity (CVSS 7.5) vulnerability in Moodle: missing access checks on h5p content files. The current sources do not mark it as known exploited. The current feed maps moodle (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps moodle (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| moodlegeneric | >=4.5.0 <4.5.15 || >=5.0.0 <5.0.11 || >=5.1.0 <5.1.8 || >=5.2.0 <5.2.4 | 4.5.15, 5.0.11, 5.1.8, 5.2.4 |
Published upstream
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
A flaw was found in Moodle. Insufficient access control checks on H5P content files allow unauthenticated remote attackers to view restricted materials, including content stored in the system context and files belonging to hidden or unavailable course modules. This issue results in unauthorized information disclosure of protected content.
Quoted source text, attributed separately from HOL analysis.