CVE-2026-105397

medium

Description

LearnPress plugin for WordPress through 4.4.9.1 contains a stored cross-site scripting vulnerability that allows authenticated instructors to inject scripts via quiz question hint and explanation fields. Attackers with the Instructor role can submit unsanitized payloads through the update_question AJAX handler that execute in the session of every student taking the quiz.

References

https://www.vulncheck.com/advisories/learnpress-wordpress-plugin-through-4.4.9.1-stored-xss-via-quiz-question-hint-and-explanation

https://wordpress.org/plugins/learnpress/

https://plugins.svn.wordpress.org/learnpress/tags/4.4.9.1/inc/Ajax/EditQuestionAjax.php

https://plugins.svn.wordpress.org/learnpress/tags/4.4.9.1/assets/src/apps/js/frontend/quiz/components/questions/question.js

https://github.com/LearnPress/learnpress/commit/9db279c0d9fd3993430bb9af158658282e9bcee1

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-92444

Details

Source: Mitre, NVD

Published: 2026-10-05

Updated: 2026-10-07

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

CVSS v4

Base Score: 5.1

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Severity: Medium

EPSS

EPSS: 0.00171