Description
WordPress Plugin Popup Builder-Create highly converting, mobile friendly marketing popups is prone to a server-side request forgery vulnerability. An attacker may leverage this issue to make the vulnerable server perform port scanning of hosts in internal or external networks; other attacks are also possible. WordPress Plugin Popup Builder-Create highly converting, mobile friendly marketing popups version 4.2.5 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 4.2.6 or latest
References
https://0day.work/cve-2023-6294-popup-builder-4-2-6-admin-ssrf-file-read/
https://plugins.svn.wordpress.org/popup-builder/trunk/readme.txt
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