The Custom Twitter Feeds plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 2.5.4. This is due to insufficient output escaping in the CTF_Display_Elements::get_post_text() function when rendering cached tweet text. The plugin's ctf_get_more_posts AJAX action is available to unauthenticated users and directly outputs cached tweet data through nl2br() without HTML escaping. When an attacker can get malicious content into cached tweet data (either by tweeting content that gets cached by the site's feed configuration, or through other vulnerabilities), the malicious HTML/JavaScript is executed when the unauthenticated endpoint is accessed. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the affected endpoint.
CVE-2026-6177 is a high severity with CVSS 7.2 Stored Cross-Site Scripting issue affecting the Plugin Custom Twitter Feeds – A Tweets Widget or X Feed Widget. It affects Versions up to 2.5.4 and is fixed in 2.5.5.
Use the related hub and response guides to connect this CVE-2026-6177 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
CVE-2026-6177 is tracked for the Plugin Custom Twitter Feeds – A Tweets Widget or X Feed Widget as high severity with CVSS 7.2. The affected range is Versions up to 2.5.4. Update Custom Twitter Feeds – A Tweets Widget or X Feed Widget to 2.5.5 or newer where that version is compatible with the site.
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This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 2.5.4.
Confirm Custom Twitter Feeds – A Tweets Widget or X Feed Widget is updated to 2.5.5 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
custom-twitter-feeds
View on wordpress.org
|
| CVE | CVE-2026-6177 |
| Patched Versions |
2.5.5
|
| Affected Versions |
Versions up to 2.5.4
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Custom Twitter Feeds – A Tweets Widget or X Feed Widget <= 2.2.2 - Authenticated (Admin+) Stored Cross-Site Scripting
Custom Twitter Feeds <= 2.2.5 - Cross-Site Request Forgery to Cache Reset via ctf_clear_cache_admin Function
Custom Twitter Feeds (Tweets Widget) <= 2.2.3 - Cross-Site Request Forgery
Custom Twitter Feeds – A Tweets Widget or X Feed Widget <= 2.2.1 - Cross-Site Request Forgery to Plugin Options Update
Custom Twitter Feeds (Tweets Widget) <= 2.1.2 - Cross-Site Request Forgery
Custom Twitter Feeds (Tweets Widget) <= 1.8.4 - Cross-Site Request Forgery
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