CVE-2026-12853
Flamingo <= 2.6.2 - Authenticated (Contributor+) Missing Authorization to Unauthorized Tag Information Disclosure via wp.getTerms and ajax-tag-search
Description
The Flamingo plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.6.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to enumerate taxonomy terms including channel names derived from Contact Form 7 form titles that may reveal internal form purposes, department names, or workflow identifiers, as well as submission counts per channel and contact tag names. The plugin's flamingo_map_meta_cap() filter restricts access to Flamingo's admin UI but does not extend to WordPress core APIs such as XML-RPC wp.getTerms and admin-ajax ajax-tag-search.
INFO
Published Date :
Sept. 7, 2026, 1:18 p.m.
Last Modified :
Sept. 7, 2026, 1:18 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-12853
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 | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Flamingo plugin to the latest version.
- Verify authorization checks for all API endpoints.
- Remove unnecessary plugin features if possible.
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-2026-12853.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-12853 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-2026-12853
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-2026-12853 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-12853 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]
Sep. 07, 2026
Action Type Old Value New Value Added Description The Flamingo plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.6.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to enumerate taxonomy terms including channel names derived from Contact Form 7 form titles that may reveal internal form purposes, department names, or workflow identifiers, as well as submission counts per channel and contact tag names. The plugin's flamingo_map_meta_cap() filter restricts access to Flamingo's admin UI but does not extend to WordPress core APIs such as XML-RPC wp.getTerms and admin-ajax ajax-tag-search. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Added CWE CWE-862 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/12xxx/CVE-2026-12853.json">CVE-2026-12853</a> Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.1/includes/capabilities.php#L5 Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.1/includes/class-contact.php#L18 Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.1/includes/class-contact.php#L27 Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.1/includes/class-inbound-message.php#L29 Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.1/includes/class-inbound-message.php#L46 Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.2/includes/capabilities.php#L5 Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.2/includes/class-contact.php#L18 Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.2/includes/class-contact.php#L27 Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.2/includes/class-inbound-message.php#L29 Added Reference https://plugins.trac.wordpress.org/browser/flamingo/tags/2.6.2/includes/class-inbound-message.php#L46 Added Reference https://plugins.trac.wordpress.org/changeset/3611179/ Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/0e79a2b2-0491-4778-996d-0a0a80b2a338?source=cve