CVE-2026-2305
AddFunc Head & Footer Code <= 2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom Fields
Description
The AddFunc Head & Footer Code plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `aFhfc_head_code`, `aFhfc_body_code`, and `aFhfc_footer_code` post meta values in all versions up to, and including, 2.3. This is due to the plugin outputting these meta values without any sanitization or escaping. While the plugin restricts its own metabox and save handler to administrators via `current_user_can('manage_options')`, it does not use `register_meta()` with an `auth_callback` to protect these meta keys. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts via the WordPress Custom Fields interface that execute when an administrator previews or views the post.
INFO
Published Date :
April 10, 2026, 4:16 a.m.
Last Modified :
April 10, 2026, 4:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-2305
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the AddFunc Head & Footer Code plugin.
- Sanitize all user input before outputting.
- Escape data when rendering in HTML context.
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-2026-2305.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-2305 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-2026-2305
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-2026-2305 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-2305 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.
-
New CVE Received by [email protected]
Apr. 10, 2026
Action Type Old Value New Value Added Description The AddFunc Head & Footer Code plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `aFhfc_head_code`, `aFhfc_body_code`, and `aFhfc_footer_code` post meta values in all versions up to, and including, 2.3. This is due to the plugin outputting these meta values without any sanitization or escaping. While the plugin restricts its own metabox and save handler to administrators via `current_user_can('manage_options')`, it does not use `register_meta()` with an `auth_callback` to protect these meta keys. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts via the WordPress Custom Fields interface that execute when an administrator previews or views the post. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/tags/2.3/addfunc-head-footer-code.php#L63 Added Reference https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/tags/2.3/addfunc-head-footer-code.php#L74 Added Reference https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/tags/2.3/addfunc-head-footer-code.php#L85 Added Reference https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/trunk/addfunc-head-footer-code.php#L63 Added Reference https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/trunk/addfunc-head-footer-code.php#L74 Added Reference https://plugins.trac.wordpress.org/browser/addfunc-head-footer-code/trunk/addfunc-head-footer-code.php#L85 Added Reference https://plugins.trac.wordpress.org/changeset?old_path=%2Faddfunc-head-footer-code/tags/2.3&new_path=%2Faddfunc-head-footer-code/tags/2.4 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/2f2d1a67-1d9b-4b73-988e-085eaa7474c6?source=cve