Researchers discovered a reflected XSS vulnerability in the Ivory Search WordPress Plugin installed on over 60,000 sites.
On March 28, 2021, Astra Security Threat Intelligence Team responsibly disclosed a vulnerability in Ivory Search, a WordPress Search Plugin installed on over 60,000 sites. This security vulnerability could be exploited by an attacker to perform malicious actions on a victim’s website.
Ivory Search – WordPress Search Plugin allows its users to create new custom search forms for their WordPress site/s.
Our Threat Intelligence Team led by Jinson Varghese initially reached out to the Ivory Search plugin developers with the full disclosure details on March 28, 2021. The developers responded on March 29, 2021, confirming the vulnerability and its impact. Then a day later, the patch was released – on March 30, 2021.
This is a medium severity reflected XSS vulnerability affecting Ivory search plugin version 4.6.0 and below. Therefore, we highly recommend updating this plugin to its latest version containing the patch, 4.6.1, immediately.
If you are using Astra Security Suite – WordPress Firewall & Malware Scanner then your site is already secured against this vulnerability.
Timeline of the vulnerability in Ivory Search
- March 28, 2021 – Astra Security Threat Intelligence team discovers and analyzes the vulnerability.
- March 28, 2021 – Full vulnerability disclosure sent to the developers of the Ivory Search plugin.
- March 29, 2021 – Astra Security received a response from the plugin’s dev team confirming the vulnerability and they also informed us that the patch should be available in a few days.
- March 30, 2021 – Patched version of the plugin released.
If you are one of the Ivory Search plugin users, it is highly recommended that you should update the plugin to its fully patched version 4.6.1.
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If you’re a WP plugin or theme developer then you can follow this DIY security audit guide to make sure that your plugin has no security loopholes.
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About the author: Kanishk Tagade
Kanishk Tagade is a Marketing Manager at Astra Security. Having a hawk-eyed view on the cybersecurity threat landscape, market-shifts, and hacktivism activities, Kanishk is a community member of the Nasscom and corporate contributor at many technology magazines and security awareness platforms.
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