MuffinGroup Betheme Plugin up to 28.4 on WordPress upload_icons path traversal

Summaryinfo

A vulnerability was found in MuffinGroup Betheme Plugin up to 28.4 on WordPress and classified as critical. The impacted element is the function upload_icons. Such manipulation leads to path traversal. This vulnerability is listed as CVE-2026-6262. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in MuffinGroup Betheme Plugin up to 28.4 on WordPress and classified as critical. Affected by this issue is the function upload_icons. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity, and availability. CVE summarizes:

The Betheme theme for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 28.4. This is due to the upload_icons() function workflow using a user-controlled upload path (`mfn-icon-upload`) in a filesystem move operation without constraining it to the uploads directory. This makes it possible for authenticated attackers, with contributor-level access and above, to move/delete arbitrary local files via path traversal.

The weakness was presented by Craig Smith and Leonid Semenenko. The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-6262 since 04/14/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/05/2026). The MITRE ATT&CK project declares the attack technique as T1006.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• MuffinGroup

Name

• Betheme Plugin

Version

• 28.0
• 28.1
• 28.2
• 28.3
• 28.4

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒
• 🔒

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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