CVE-2026-107658
BuddyForms <= 2.10.5 - Unauthenticated Stored Cross-Site Scripting via 'bf_post_type' Parameter via Post-Type Confusion
Description
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.
INFO
Published Date :
Nov. 6, 2026, 12:17 p.m.
Last Modified :
Nov. 6, 2026, 12:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update BuddyForms plugin to the latest version.
- Ensure input sanitization and output escaping are enabled.
- Review form settings for public submissions.
- Check widget configurations for custom HTML.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-107658.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-107658 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-107658
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-107658 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-107658 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Nov. 06, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/107xxx/CVE-2026-107658.json">CVE-2026-107658</a> Added Reference https://github.com/Themekraft/buddyforms/pull/779/files Added Reference https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-ajax.php#L96 Added Reference https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L258 Added Reference https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L261 Added Reference https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L359 Added Reference https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L604 Added Reference https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.10.2/includes/form/form-control.php#L642 Added Reference https://plugins.trac.wordpress.org/changeset/3780268/buddyforms/trunk/includes/form/form-control.php Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/ec36eff4-0f85-4d89-b209-aaf07ae2ff9c?source=cve