6.4Medium

CVE-2026-84909

The Custom Twitter Feeds – A Tweets Widget or X Feed Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'buttoncolor' Shortcode Attribute in all versions up to, and including, 2.8.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is exploitable on common installs where the admin has configured access tokens with zero or multiple legacy feeds, as this causes the ctf_statuses support_legacy_shortcode option to be set to boolean true by default, activating the unfiltered legacy shortcode attribute code path.

What this means for your business

An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
FIRST's prediction model gives it a 0.2% chance of attack attempts being seen in the next 30 days, ranking above 14% of all known flaws.

What to do

1Ask your IT team or provider whether any of your systems use the affected product.
2If you do, follow the vendor's guidance. No patch reference has been published yet.

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CVE-2026-84909

What this means for your business

What to do

Not sure if your company is exposed to CVE-2026-84909?

Scoring

Dates

References