Report: Complete Guide to CVE-2026-5797 - Quiz and Survey Master (QSM) <= 11.1.0 - unauthenticated shortcode injection lead...

Report: Complete Guide to CVE-2026-5797 - Quiz and Survey Master (QSM) <= 11.1.0 - unauthenticated shortcode injection lead...

CVE ID :CVE-2026-5797 Published : April 17, 2026, 6:16 a.m. | 58 minutes ago Description :The Quiz And Survey Master plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to and including 11.1.0. This is due to insufficient input sanitization and the execution of do_shortcode() on user-submitted quiz answer text. User-submitted answers pass through sanitize_text_field() and htmlspecialchars(), which only strip HTML tags but do not encode or remove shortcode brackets [ and ]. When quiz results are displayed, the plugin calls do_shortcode() on the entire results page output (including user answers), causing any injected shortcodes to be executed. This makes it possible for unauthenticated attackers to inject arbitrary WordPress shortcodes such as [qsm_result id=X] to access other users' quiz submissions without authorization, as the qsm_result shortcode lacks any authorization checks. Severity: 5.3 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
MEDIUM
Published
April 17, 2026
Affected Product: WordPress