Betheme <= 28.4 — Authenticated (Author+) Arbitrary File Upload to Remote Code Execution via Icon Pack Upload
CVE-2026-6261Published · Updated Action summary
Affected: ≤28.4Update to 28.4.1 or newer
All remediation steps- Severity
- High8.8
- CVSS
- 8.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-434 Arbitrary File Upload
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Betheme betheme
- Affected≤ 28.4
- Patched in28.4.1
Update to 28.4.1 or newer.
You are affected if you run ≤ 28.4. Version 28.4.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Betheme.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 28.4.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Betheme to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Webbernaut, Leonid Semenenko (lsemenenko).
The Betheme theme for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 28.4. This is due to the upload_icons() function workflow moving and unzipping user-controlled ZIP files into a public uploads directory without validating extracted file types. This makes it possible for authenticated attackers, with author-level access and above, to upload arbitrary files (including PHP) and achieve remote code execution via the Icons icon-pack upload flow.
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 Betheme
All 25| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤28.5.8No patch available | CVE-2026-94415 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via 'icon_box_2' Shortcode ≤28.4Update to 28.4.1 | CVE-2026-6178 | |
| High8.8 | Authenticated (Contributor+) Remote Code Execution ≤28.5.7Update to 28.5.8 | CVE-2026-65548 | |
| Medium6.5 | Authenticated (Contributor+) Arbitrary File Deletion via 'mfn-icon-upload' ≤28.4Update to 28.4.1 | CVE-2026-6262 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via 'page_title' ≤28.1.6Update to 28.1.7 | CVE-2025-9371 |
- High7.2Unauthenticated Stored Cross-Site Scripting
≤28.5.8No patch available
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'icon_box_2' Shortcode
≤28.4Update to 28.4.1
- High8.8Authenticated (Contributor+) Remote Code Execution
≤28.5.7Update to 28.5.8
- Medium6.5Authenticated (Contributor+) Arbitrary File Deletion via 'mfn-icon-upload'
≤28.4Update to 28.4.1
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'page_title'
≤28.1.6Update to 28.1.7
Same weakness (Arbitrary File Upload)
All Arbitrary File Upload| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| 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 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- 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
- 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
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity high, CVSS 8.8
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.