CVE-2026-6177 Details
Description
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.
A stored cross-site scripting vulnerability has been identified in the Custom Twitter Feeds plugin for WordPress, affecting versions through 2.5.4. The issue arises from inadequate output escaping in the 'CTF_Display_Elements::get_post_text()' function, which handles cached tweet text. The vulnerability is exploitable via the 'ctf_get_more_posts' AJAX action, accessible to unauthenticated users. This action outputs cached tweet data without proper HTML escaping, using 'nl2br()' instead. If an attacker can inject malicious content into the cached tweet data—either by tweeting harmful links that are then cached or through other vulnerabilities—their scripts will execute when the endpoint is accessed. This allows for the injection of arbitrary web scripts that run when users visit the affected page.
Users are advised to update the Custom Twitter Feeds plugin to version 2.5.5 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 13, 2026CISA-ADP
Assessed May 13, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Smash Balloon Custom Twitter Feeds | <= 2.5.4 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 13, 2026 | New CVE Received | [email protected] |