{"id":"CVE-2006-4450","aliases":["EUVD-2006-4438","GHSA-wgpr-g56x-xxhp"],"status":"published","title":"usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to...","description":"usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request.","severity":{"version":"2.0","score":5.1,"vector":"AV:N/AC:H/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.04196,"percentile":0.91013,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2006-08-30T01:00:00Z","modified":"2026-06-16T22:29:07Z","exploits":[{"source":"exploitdb","id":"EDB-27863","title":"phpBB 2.0.20 - Unauthorized HTTP Proxy","type":"webapps","platform":"php","date":"2006-05-12","verified":true,"url":"https://www.exploit-db.com/exploits/27863"}],"products":[{"vendor":"phpbb_group","product":"phpbb"}],"references":[{"url":"http://securityreason.com/securityalert/1470","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2006-05/0238.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/26537","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/17965","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit"]},{"url":"http://secunia.com/advisories/20093","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-4450"},{"url":"https://github.com/advisories/GHSA-wgpr-g56x-xxhp"}],"sources":{"cve":[{"id":"CVE-2006-4450","description":"usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request.","status":"published","published":"2006-08-30T01:00:00Z","modified":"2024-08-07T19:14:46.693Z","updated_at":"2026-11-02T14:33:51.470623Z"}],"euvd":[{"id":"EUVD-2006-4438","description":"usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request.","status":"published","published":"2006-08-30T01:00:00Z","modified":"2024-08-07T19:14:46Z","updated_at":"2026-11-03T01:15:52.149607Z"}],"ghsa":[{"id":"GHSA-wgpr-g56x-xxhp","title":"usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to...","description":"usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request.","status":"published","published":"2022-05-01T07:18:47Z","modified":"2023-01-31T05:01:52Z","updated_at":"2026-11-02T14:48:09.208669Z"}],"nvd":[{"id":"CVE-2006-4450","description":"usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request.","status":"published","published":"2006-08-30T01:04:00Z","modified":"2026-06-16T22:29:07.48Z","cvss":[{"version":"2.0","score":5.1,"vector":"AV:N/AC:H/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:05.928789Z"}]}}