Is CVE-2013-4878 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2013-4878, but active exploitation has not been confirmed.

Can CVE-2013-4878 be exploited remotely?

Yes. CVE-2013-4878 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2013-4878?

CVE-2013-4878 has a CVSS score of 7.5 (HIGH).

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HIGHPOC

CVE-2013-4878

CWE-264Published: July 18, 2013· Updated: Jun 16, 2026

7.5

CVSS v3.1

Official Description

The default configuration of Parallels Plesk Panel 9.0.x and 9.2.x on UNIX, and Small Business Panel 10.x on UNIX, has an improper ScriptAlias directive for phppath, which makes it easier for remote attackers to execute arbitrary code via a crafted request, a different vulnerability than CVE-2012-1823.

NVD Source

Technical Analysis

CVE-2013-4878 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-2013-4878. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.