CVE-2026-6262

Betheme <= 28.4 - Authenticated (Contributor+) Arbitrary File Deletion via 'mfn-icon-upload'

2026-05-04 21:38
Webbernaut

Strategic Overview

Status
Patched in 28.4.1
Affected Theme
Betheme
Affected Version
<= 28.4
CVSS
6.5Medium
Weakness type
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE
CVE-2026-6262
View all Betheme vulnerabilities

At a glance

CVE-2026-6262 is a medium-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Betheme WordPress theme, affecting versions <= 28.4. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high integrity impact). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 28.4.1; sites on affected versions should update now. Disclosed May 2026, reported by Webbernaut.

Vulnerability Overview

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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on integrity.

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Betheme <= 28.4 carries this weakness at upload_icons(), and reaching it takes an account at Contributor level or above. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.

Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For Betheme the fix is 28.4.1: builds <= 28.4 are affected, anything from 28.4.1 onward is not.

Remediation

Update to version 28.4.1, or a newer patched version

How does WordSec protect against this?

An attacker needs Contributor access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Betheme 28.4.1 closes this, and updating the theme is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-6262https://www.wordfence.com/threat-intel/vulnerabilities/id/3486f114-5625-4751-a25e-2c5ab7b15b38https://nvd.nist.gov/vuln/detail/CVE-2026-6262

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C