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Video Lessons Manager < 1.7.2 and Video Lessons Manager Pro < 3.5.9 — Stored Cross-Site Scripting

CVE-2021-24713Published · Updated

Action summary

CM Video Lessons Manager – Simplify video lessons management for better education: Affected: ≤1.7.1Update to 1.7.2 or newer

Video Lessons Manager Pro – Best Video Course LMS: Affected: ≤3.5.8Update to 3.5.9 or newer

All remediation steps
Watch plugin
Severity
Medium5.5
CVSS
5.5
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:H Privileges required
High
UI:N User interaction
None
S:C Scope
Changed
C:L Confidentiality
Low
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-79 Cross-Site Scripting
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

CM Video Lessons Manager – Simplify video lessons management for better education cm-video-lesson-manager

  1. Affected≤ 1.7.1
  2. Patched in1.7.2

Update to 1.7.2 or newer.

You are affected if you run ≤ 1.7.1. Version 1.7.2 and later are not affected by this issue.

Video Lessons Manager Pro – Best Video Course LMS cm-video-lesson-manager-pro

  1. Affected≤ 3.5.8
  2. Patched in3.5.9

Update to 3.5.9 or newer.

You are affected if you run ≤ 3.5.8. Version 3.5.9 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under CM Video Lessons Manager – Simplify video lessons management for better education.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 1.7.2, or a newer patched version
  2. Update to version 3.5.9, or a newer patched version
  3. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  4. Watch CM Video Lessons Manager – Simplify video lessons management for better education to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Shivam Rai.

The Video Lessons Manager WordPress plugin before 1.7.2 and Video Lessons Manager Pro WordPress plugin before 3.5.9 do not properly sanitize and escape values when updating their settings, which could allow high privilege users to perform Cross-Site Scripting attacks

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in CM Video Lessons Manager – Simplify video lessons management for better education

All 2
More vulnerabilities in CM Video Lessons Manager – Simplify video lessons management for better education
SeverityVulnerabilityCVEPublished
Medium6.1Reflected Cross-Site Scripting via cminds_free_guide Shortcode
≤1.4.2Update to 1.4.3
CVE-2024-11202

Same weakness (Cross-Site Scripting)

All Cross-Site Scripting
Other Cross-Site Scripting vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 5.5

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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