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CVE-2012-20004

MEDIUM 5.1 CVSS 4.0
Published
October 20, 2026
Last modified
October 23, 2026
NVD status
Deferred
Reported by
disclosure@vulncheck.com
Weakness
CWE-79
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Carles Reverter K-news — Before 1.1.1

References

  • web.archive.org http://web.archive.org/web/20210213220043/https://www.securityfocus.com/bid/54330/info
  • github.com https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/wp-knews-xss.yaml
  • wordpress.org https://wordpress.org/plugins/knews/
  • www.acunetix.com https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-knews-multilingual-newsletters-ff-parameter-cross-site-scripting-1-1-0
  • www.exploit-db.com https://www.exploit-db.com/exploits/37484
  • www.vulncheck.com https://www.vulncheck.com/advisories/k-news-wordpress-plugin-1.1.1-reflected-xss-via-fontpicker-index-php-ff-parameter
  • nvd.nist.gov Official NVD record