Vulnerability in Carles Reverter K-news

[ Description ]Official description

K-news plugin for WordPress before 1.1.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject script by supplying unsanitized input through the 'ff' parameter. Attackers can craft GET requests to /wp-content/plugins/knews/wysiwyg/fontpicker/index.php with malicious 'ff' values echoed into option tags to execute script and steal session cookies. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-19.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• web.archive.org/web/20210213220043/https://www.securityfocus.com/bid/54330/info
• github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/w…
• wordpress.org/plugins/knews
• www.acunetix.com/vulnerabilities/web/wordpress-plugin-knews-multilingual-newsletters-ff…
• www.exploit-db.com/exploits/37484
• www.vulncheck.com/advisories/k-news-wordpress-plugin-1.1.1-reflected-xss-via-fontpicker…