What is the CVSS score of EUVD-2026-33651?

EUVD-2026-33651 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

Which versions of LearnPress are affected by EUVD-2026-33651?

The ThimPress LearnPress WordPress plugin (versions ≤4.3.6) contains a reflected cross-site scripting vulnerability enabling attackers to compromise user accounts and access sensitive course data…

How to fix or mitigate EUVD-2026-33651?

Within 24 hours: Identify and catalog all WordPress installations running ThimPress LearnPress plugin versions 4.3.6 and earlier; document affected systems and assess business criticality. Within 7 days: Implement Web Application Firewall rules to detect and block reflected XSS attack patterns against the plugin; restrict plugin access to authenticated administrators only. Within 30 days: Establish monitoring for vendor security updates; evaluate migration to alternative learning management solutions if patch availability remains uncertain.

LearnPress EUVD-2026-33651

| CVE-2026-48865 HIGH

Cross-site Scripting (XSS) (CWE-79)

2026-06-01 audit@patchstack.com

GHSA-98h6-j5jr-j4p4

WordPress XSS Wordpress Plugin

7.1

CVSS 3.1 · Vendor: patchstack

Severity by source

Vendor (patchstack) PRIMARY

7.1 HIGH

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

Primary rating from Vendor (patchstack) · only source for this CVE.

CVSS VectorVendor: patchstack

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Jun 01, 2026 - 15:34 vuln.today

DescriptionCVE.org

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThimPress LearnPress allows Reflected XSS.

This issue affects LearnPress: from n/a through 4.3.6.

AnalysisAI

Reflected cross-site scripting in ThimPress LearnPress WordPress plugin through version 4.3.6 allows unauthenticated remote attackers to execute arbitrary JavaScript in a victim's browser when the victim clicks a crafted link. The CVSS scope-changed vector (S:C) indicates impact extends beyond the vulnerable component, typical of XSS reaching the WordPress admin context, and no public exploit has been identified at time of analysis.

Technical ContextAI

LearnPress is a widely deployed WordPress Learning Management System (LMS) plugin from ThimPress used to build online courses, quizzes, and student portals. The root cause is CWE-79 (Improper Neutralization of Input During Web Page Generation): user-supplied input is reflected back into a generated web page without sufficient output encoding or input sanitization, so an HTML/JavaScript payload supplied via a request parameter executes in the browser of any user who loads the crafted URL. Because LearnPress integrates into the WordPress admin UI and front-end course pages, the reflected sink likely sits in a request-handling endpoint rendered without WordPress's escaping primitives such as esc_html, esc_attr, or wp_kses.

RemediationAI

No vendor-released patched version is identified in the input data, so site operators should monitor the ThimPress LearnPress plugin page on wordpress.org and the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/learnpress/vulnerability/wordpress-learnpress-plugin-4-3-6-reflected-cross-site-scripting-xss-vulnerability for a release later than 4.3.6 and upgrade as soon as it is published. Until a fix is available, compensating controls include deploying a WordPress-aware WAF (Patchstack, Wordfence, or Cloudflare managed rules) with virtual patching for this CVE which will block the reflected payload at the edge, restricting administrative access to known IP ranges so the high-impact admin victim path is harder to reach, and instructing administrators and instructors not to follow LearnPress URLs received from untrusted sources; the trade-off of WAF rules is occasional false positives on legitimate course content containing HTML, and IP allow-listing breaks remote admin from arbitrary networks. Disabling the plugin entirely eliminates the risk but takes the LMS offline.