CVE-2026-107658

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    CVE-2026-107658

    Published: 6 Nov 2026Last Modified: 8 Nov 2026

    Summary: BuddyForms <= 2.10.5 - Unauthenticated Stored Cross-Site Scripting via 'bf_post_type' Parameter via Post-Type Confusion

    Details: The BuddyForms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'bf_post_type (and buddyforms_form_content)' parameter in all versions up to, and including, 2.10.5 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. Exploitation requires that at least one BuddyForms form with public submissions enabled exists on the site (so that the required nonce can be harvested from the public form page) and that the active theme registers a widgetized sidebar, allowing the injected customize_changeset to place a malicious Custom HTML widget into the site's front end.

    References: https://github.com/Themekraft/buddyforms/pull/779/files, https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-ajax.php#L96, https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L258, https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L261, https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L359, https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L604, https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L642, https://plugins.trac.wordpress.org/changeset/3780268/buddyforms/trunk/includes/form/form-control.php, https://www.wordfence.com/threat-intel/vulnerabilities/id/ec36eff4-0f85-4d89-b209-aaf07ae2ff9c?source=cve, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107658.json, https://nvd.nist.gov/vuln/detail/CVE-2026-107658

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.10.5
    2.10.4
    2.10.3
    2.10.2
    2.10.1
    2.10.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-107658 | CVE-DB