EUVD-2026-62266
GHSA-28r4-82c9-hfh7
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Contributor is a low-privilege WordPress role, warranting PR:L over PR:H; only configuration metadata is disclosed, so C:L with no integrity or availability impact applies.
Primary rating from Vendor (wpscan).
CVSS VectorVendor: wpscan
Lifecycle Timeline
3DescriptionCVE.org
The Quiz and Survey Master (QSM) WordPress plugin before 11.2.4 does not perform a per-object ownership check on the REST routes that return a quiz's email-notification and results-page configuration, allowing users with contributor-level access and above to read the configuration, including notification recipient addresses, of quizzes created by other users.
AnalysisAI
Quiz and Survey Master (QSM) WordPress plugin before 11.2.4 exposes quiz email-notification and results-page configurations to unauthorized lateral reading by any authenticated contributor-level user on the same WordPress installation. The missing per-object ownership check on QSM REST API routes (CWE-639 IDOR) allows a contributor to query configuration data, including notification recipient email addresses, for quizzes created by other site users. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid WordPress user account with at minimum contributor-level role on the target installation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The aggregate risk profile is low across all available signal sources. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary fix is to update the Quiz and Survey Master plugin to version 11.2.4 or later, which introduces per-object ownership validation on the affected REST routes. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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