Various Plugins <= Various Version - Use of Polyfill.io
Strategic Overview
- Status
- Unpatched
- Affected Version
*- CVSS
- 5.3Medium
- Weakness type
- CWE-348 · Use of Less Trusted Source
- CVE
CVE pending
At a glance
This record tracks a medium-severity Use of Less Trusted Source vulnerability in the OpenStreetMap for Gutenberg and WPBakery Page Builder (formerly Visual Composer) WordPress plugin, affecting versions *. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed June 2024.
Vulnerability Overview
Multiple plugins for WordPress are vulnerable to malicious redirection in various versions. This is due to the use of Polyfill.io. Polyfill.io is a JavaScript library used to streamline delivery of content across older browsers and was taken over by malicious threat actors that used the service to redirect victims to malicious websites. While many WordPress plugins utilize Polyfill.io, not all of them may have been delivering malicious content. Regardless, it is recommended to update to a version of the plugin where Polyfill is no longer used or manually remove the use of Polyfill.io from the plugin.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.
CWE-348: Use of Less Trusted Source
The product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
The attempt arrives as an ordinary request to OpenStreetMap for Gutenberg and WPBakery Page Builder (formerly Visual Composer): WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in OpenStreetMap for Gutenberg and WPBakery Page Builder (formerly Visual Composer)
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C