Is CVE-2012-4247 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2012-4247, but active exploitation has not been confirmed.

Can CVE-2012-4247 be exploited remotely?

Yes. CVE-2012-4247 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2012-4247?

CVE-2012-4247 has a CVSS score of 4.3 (MEDIUM).

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MEDIUMPOC

CVE-2012-4247

CWE-79Published: August 12, 2012· Updated: Jun 16, 2026

4.3

CVSS v3.1

Official Description

Multiple cross-site scripting (XSS) vulnerabilities in lists/admin/index.php in phpList before 2.10.19 allow remote attackers to inject arbitrary web script or HTML via the (1) remote_user, (2) remote_database, (3) remote_userprefix, (4) remote_password, or (5) remote_prefix parameter to the import4 page; or the (6) id parameter to the bouncerule page.

NVD Source

Technical Analysis

CVE-2012-4247 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2012-4247. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.