Directory traversal vulnerability in the PostScript Interpreter, as used on the HP LaserJet 4xxx, 5200, 90xx, M30xx, M4345, M50xx, M90xx, P3005, and P4xxx; LaserJet Enterprise P3015; Color LaserJet 3xxx, 47xx, 5550, 9500, CM60xx, CP35xx, CP4005, and CP6015; Color LaserJet Enterprise CP4xxx; and 9250c Digital Sender with model-dependent firmware through 52.x allows remote attackers to read arbitrary files via unknown vectors.

The default configuration of the HP CM8060 Color MFP with Edgeline; Color LaserJet 3xxx, 4xxx, 5550, 9500, CMxxxx, CPxxxx, and Enterprise CPxxxx; Digital Sender 9200c and 9250c; LaserJet 4xxx, 5200, 90xx, Mxxxx, and Pxxxx; and LaserJet Enterprise 500 color M551, 600, M4555 MFP, and P3015 enables the Remote Firmware Update (RFU) setting, which allows remote attackers to execute arbitrary code by using a session on TCP port 9100 to upload a crafted firmware update.

Multiple cross-site scripting (XSS) vulnerabilities in Jetdirect and the Embedded Web Server (EWS) on certain HP LaserJet and Color LaserJet printers, and HP Digital Senders, allow remote attackers to inject arbitrary web script or HTML via the (1) Product_URL or (2) Tech_URL parameter in an Apply action to the support_param.html/config script.

Multiple cross-site request forgery (CSRF) vulnerabilities in the HP Embedded Web Server (EWS) on HP LaserJet Printers, Edgeline Printers, and Digital Senders allow remote attackers to hijack the intranet connectivity of arbitrary users for requests that (1) print documents via unknown vectors, (2) modify the network configuration via a NetIPChange request to hp/device/config_result_YesNo.html/config, or (3) change the password via the Password and ConfirmPassword parameters to hp/device/set_config_password.html/config.

The HP Embedded Web Server (EWS) on HP LaserJet Printers, Edgeline Printers, and Digital Senders has no management password by default, which makes it easier for remote attackers to obtain access.

Directory traversal vulnerability in the HP JetDirect web administration interface in the HP-ChaiSOE 1.0 embedded web server on the LaserJet 9040mfp, LaserJet 9050mfp, and Color LaserJet 9500mfp before firmware 08.110.9; LaserJet 4345mfp and 9200C Digital Sender before firmware 09.120.9; Color LaserJet 4730mfp before firmware 46.200.9; LaserJet 2410, LaserJet 2420, and LaserJet 2430 before firmware 20080819 SPCL112A; LaserJet 4250 and LaserJet 4350 before firmware 20080819 SPCL015A; and LaserJet 9040 and LaserJet 9050 before firmware 20080819 SPCL110A allows remote attackers to read arbitrary files via directory traversal sequences in the URI.

The remote upgrade capability in HP LaserJet 4200 and 4300 printers does not require a password, which allows remote attackers to upgrade firmware.