Flatsome <= 3.20.5 — Missing Authorization
CVE-2026-57729Published · Updated Action summary
Affected: ≤3.20.5No patch available
What to do until a fix ships- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-862 Missing Authorization
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Flatsome flatsome
- Affected≤ 3.20.5
- PatchedNo fix yet
No patched version available.
You are affected if you run ≤ 3.20.5. No fixed version has been released.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Flatsome.
- 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 Flatsome to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Bonds.
The Flatsome theme for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 3.20.5. This makes it possible for unauthenticated attackers to perform an unauthorized action.
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 Flatsome
All 12| 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 ≤3.20.12Update to 3.20.13 | CVE-2026-18742 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤3.20.5No patch available | CVE-2026-57728 | |
| Medium4.3 | Missing Authorization ≤3.20.5No patch available | CVE-2026-57731 | |
| Medium4.3 | Missing Authorization ≤3.20.5No patch available | CVE-2026-57730 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤3.20.5Update to 3.20.6 | CVE-2026-28083 |
- Medium6.4Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via 'data-text-sec', 'data-title', and 'title' Attributes via Custom HTML Block
≤3.20.12Update to 3.20.13
- Medium6.1Reflected Cross-Site Scripting
≤3.20.5No patch available
- Medium4.3Missing Authorization
≤3.20.5No patch available
- Medium4.3Missing Authorization
≤3.20.5No patch available
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤3.20.5Update to 3.20.6
Same weakness (Missing Authorization)
All Missing Authorization| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| 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 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 |
- 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
- 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
Timeline
CVE published
Severity medium, CVSS 5.3
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.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.