HLstats 1.20 through 1.34 allows remote attackers to obtain sensitive information via playinfo mode, with certain values of the player and playerdata[lastName][] parameters, which reveals the path in an error message.

Cross-site scripting (XSS) vulnerability in hlstats.php in HLstats 1.35, and possibly earlier, allows remote attackers to inject arbitrary web script or HTML via (1) the PATH_INFO or (2) the action parameter.

Multiple cross-site scripting (XSS) vulnerabilities in hlstats.php in HLstats 1.35, and possibly earlier, allow remote attackers to inject arbitrary web script or HTML via the (1) authusername or (2) authpassword parameter, different vectors than CVE-2007-0840 and CVE-2007-2812.

SQL injection vulnerability in the login form in HLstats 1.20 through 1.34 allows remote attackers to execute arbitrary SQL commands via the killLimit parameter.

Cross-site scripting (XSS) vulnerability in HLstats before 1.35 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors in the search class. NOTE: it is possible that this issue overlaps CVE-2006-4543.3 or CVE-2006-4454.

Cross-site scripting (XSS) vulnerability in index.php in HLStats 1.34 allows remote attackers to inject arbitrary web script or HTML via the (1) game parameter in players mode, the (2) weapon parameter in weaponinfo mode, the (3) st parameter in search mode, the (4) action parameter in actioninfo mode, and the (5) map parameter in mapinfo mode.

Cross-site scripting (XSS) vulnerability in hlstats.php in HLstats 1.34 allows remote attackers to inject arbitrary web script or HTML via the q parameter.