Medium severity · published Oct 5, 2026
CVE-2026-105397
LearnPress WordPress Plugin through 4.4.9.1 Stored XSS via Quiz Question Hint and Explanation
5.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LE
LearnPress · ThimPress
through 4.4.9.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105397
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105397
patch
https://github.com/LearnPress/learnpress/commit/9db279c0d9fd3993430bb9af158658282e9bcee1
technical-description
https://plugins.svn.wordpress.org/learnpress/tags/4.4.9.1/inc/Ajax/EditQuestionAjax.php
technical-description
https://plugins.svn.wordpress.org/learnpress/tags/4.4.9.1/assets/src/apps/js/frontend/quiz/components/questions/question.js
product
https://wordpress.org/plugins/learnpress/
third-party-advisory
https://www.vulncheck.com/advisories/learnpress-wordpress-plugin-through-4.4.9.1-stored-xss-via-quiz-question-hint-and-explanation
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