XSS in Carles Reverter K-News
CVE-2012-20004
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/37484 (exploit)
- web.archive.org/web/20210213220043/https://www.securityfocus.com/bid/54330/info (technical-description)
- www.acunetix.com/vulnerabilities/web/wordpress-plugin-knews-multilingual-newsle… (third-party-advisory)
- github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wor… (technical-description)
- wordpress.org/plugins/knews/ (product)
- www.vulncheck.com/advisories/k-news-wordpress-plugin-1.1.1-reflected-xss-via-fo… (third-party-advisory)
Frequently asked questions
- What is CVE-2012-20004?
- CVE-2012-20004 is a medium-severity vulnerability in Carles Reverter K-News, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-10-20.
- How severe is CVE-2012-20004?
- Medium severity. CVSS v3 base score is 6.1 out of 10.