CVE 2012-2244
Mahara 1.4.x before 1.4.5 and 1.5.x before 1.5.4 allows remote authenticated administrators to execute arbitrary programs by modifying the path to clamav. NOTE: this can be exploited without authentication by leveraging CVE-2012-2243.
See the 
CVE page on Mitre.org
for more details.
