XWiki 14.3-rc-1 < 14.4.6, 14.5.x < 14.9 Exposed Dangerous Class Vulnerability (GHSA-8692-g6g9-gm5p)

# SPDX-FileCopyrightText: 2023 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:xwiki:xwiki";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.170342");
  script_version("2026-01-29T08:35:42+0000");
  script_tag(name:"last_modification", value:"2026-01-29 08:35:42 +0000 (Thu, 29 Jan 2026)");
  script_tag(name:"creation_date", value:"2023-03-06 09:03:39 +0000 (Mon, 06 Mar 2023)");
  script_tag(name:"cvss_base", value:"8.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:C/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-03-10 05:03:00 +0000 (Fri, 10 Mar 2023)");

  script_cve_id("CVE-2023-26478");

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

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

  script_name("XWiki 14.3-rc-1 < 14.4.6, 14.5.x < 14.9 Exposed Dangerous Class Vulnerability (GHSA-8692-g6g9-gm5p)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_xwiki_http_detect.nasl");
  script_mandatory_keys("xwiki/detected");

  script_tag(name:"summary", value:"Xwiki is prone to an exposed dangerous class vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"org.xwiki.store.script.TemporaryAttachmentsScriptService#
  uploadTemporaryAttachment is returning an instance of com.xpn.xwiki.doc.XWikiAttachment. This class
  is not supported to be exposed to users without the programming right. com.xpn.xwiki.api.Attachment
  should be used instead and takes case of checking the user's rights before performing dangerous
  operations.");

  script_tag(name:"affected", value:"XWiki version 14.3-rc-1 prior to 14.4.6 and 14.5.x prior to
  14.9.");

  script_tag(name:"solution", value:"Update to version 14.4.6, 14.9 or later.");

  script_xref(name:"URL", value:"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-8692-g6g9-gm5p");
  script_xref(name:"url", value:"https://jira.xwiki.org/browse/XWIKI-20180");

  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if( ! port = get_app_port( cpe:CPE ) )
  exit( 0 );

if ( ! infos = get_app_version_and_location( cpe:CPE, port:port, exit_no_version:TRUE ) )
  exit( 0 );

version = infos["version"];
location = infos["location"];

if( version_in_range_exclusive( version:version, test_version_lo:"14.3-rc-1", test_version_up:"14.4.6" ) ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"14.4.6", install_path:location );
  security_message( port:port, data:report );
  exit( 0 );
}

if ( version_in_range_exclusive( version:version, test_version_lo:"14.5", test_version_up:"14.9" ) ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"14.9", install_path:location );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );