High 7.2Published May 13, 2026

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

Updated under an hour ago (Oct 27, 2026, 10:10 PM ET)

Does this affect you?

It affects smub Custom Twitter Feeds – A Tweets Widget or X Feed Widget. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for smub Custom Twitter Feeds – A Tweets Widget or X Feed Widget

Exploited in the last 30 days

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.

CVSS: 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: May 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

smub Custom Twitter Feeds – A Tweets Widget or X Feed Widget smub:custom_twitter_feeds_a_tweets_widget_or_x_feed_widget (from the name)	through 2.5.4	CNA record

References

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/e4b2178f-e4da-4bfb-9c27-8c1884499769?source=cve
https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/custom-twitter-feed.php#L447
https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/inc/CTF_Display_Elements.php#L505
https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/inc/CTF_Display_Elements.php#L505
https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/custom-twitter-feed.php#L447
https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/inc/CTF_Display_Elements.php#L521
https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/inc/CTF_Display_Elements.php#L521
https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/templates/item.php#L36
https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/templates/item.php#L36
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3519584%40custom-twitter-feeds&old=3481416%40custom-twitter-feeds

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.