VulnSocial

CVE-2026-0559Disclosure

LOWCVSS 6.4 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'stm_lms_courses_grid_display' shortcode in all versions up to, and including, 3.7.11 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-02-14: 2Technical Details · 2026-02-14: 202-14
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-0559 The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'stm_lms_cour… https://www.cve.org/CVERecord?id=CVE-2026-0559

    Post summary

    A Stored Cross‑Site Scripting (XSS) vulnerability (CVE-2026-0559) affecting the MasterStudy LMS WordPress plugin has been disclosed, but no PoC, exploit, patch, or evidence of active exploitation is provided.

    00020173
    56.5K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-0559 Stored XSS Vulnerability in MasterStudy LMS WordPress Plugin via Shortcode Attribute https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-0559

    Post summary

    A stored XSS vulnerability (CVE-2026-0559) affecting the MasterStudy LMS WordPress plugin was disclosed via a Vulmon link, with no PoC or exploit details provided.

    0000038
    4.0K followersView on X

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