LMS <= 8.3 — Unauthenticated Stored Cross-Site Scripting
CVE-2026-78532Published · Updated Action summary
Affected: ≤8.3No patch available
What to do until a fix ships- Severity
- High7.2
- CVSS
- 7.2CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- No account needed
- Exploit prediction (EPSS)
- 0.1% chance in 30 days3th percentile
- CISA KEV
- Not listed
On this page8
Am I affected?
LMS - Education WordPress Theme lms
- Affected≤ 8.3
- PatchedNo fix yet
No patched version available.
You are affected if you run ≤ 8.3. No fixed version has been released.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under LMS - Education WordPress Theme.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch LMS - Education WordPress Theme to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Tran Nguyen Bao Khanh.
The LMS theme for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 8.3. This is due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in LMS - Education WordPress Theme
All 4| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.1 | Reflected Cross-Site Scripting ≤9.7No patch available | CVE-2026-27404 | |
| High7.5 | Unauthenticated SQL Injection ≤9.2Update to 9.3 | CVE-2025-52833 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤9.2Update to 9.3 | CVE-2025-52799 |
- Medium6.1Reflected Cross-Site Scripting
≤9.7No patch available
- High7.5Unauthenticated SQL Injection
≤9.2Update to 9.3
- Medium6.1Reflected Cross-Site Scripting
≤9.2Update to 9.3
Same weakness (Cross-Site Scripting)
All Cross-Site Scripting| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via 'data-text-sec', 'data-title', and 'title' Attributes via Custom HTML Block | CVE-2026-18742 | |
| High7.1 | Unauthenticated PHP Object Injection to Arbitrary File Deletion via 'comment_content'/'comment_agent' Parameter during Attachment Rename Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization≤4.2.19Update to 4.2.20 | CVE-2026-124969 | |
| Critical9.8 | Missing Authorization to Unauthenticated Arbitrary User Password Reset / Account Takeover via Webhook with 'Is the user ID' Field | CVE-2026-126173 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 |
- Medium6.4Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via 'data-text-sec', 'data-title', and 'title' Attributes via Custom HTML Block
Flatsome
≤3.20.12Update to 3.20.13
- High7.1Unauthenticated PHP Object Injection to Arbitrary File Deletion via 'comment_content'/'comment_agent' Parameter during Attachment Rename
Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization
≤4.2.19Update to 4.2.20
- Critical9.8Missing Authorization to Unauthenticated Arbitrary User Password Reset / Account Takeover via Webhook with 'Is the user ID' Field
AutomatorWP Webhooks
≤1.4.4Update to 1.4.5
- 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
Timeline
CVE published
Severity high, CVSS 7.2
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. 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.
- EPSS
- Exploit Prediction Scoring System by FIRST.org.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.