Vulnerability · Published May 13, 2026 · Assigned by Wordfence

CVE-2026-6177Custom Twitter Feeds <= 2.5.4 - Unauthenticated Stored Cross-Site Scripting via Cached Tweet Text

High 7.2

In plain English

A high-severity cross-site scripting in Custom Twitter Feeds – A Tweets Widget or X Feed Widget from smub. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.5%top 57.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
smub	Custom Twitter Feeds – A Tweets Widget or X Feed Widget	0 – through 2.5.4

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References