8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
5.7 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
34.7%
Discourse is prone to multiple vulnerabilities.
# Copyright (C) 2023 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
CPE = "cpe:/a:discourse:discourse";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.149208");
script_version("2023-10-12T05:05:32+0000");
script_tag(name:"last_modification", value:"2023-10-12 05:05:32 +0000 (Thu, 12 Oct 2023)");
script_tag(name:"creation_date", value:"2023-01-27 04:46:10 +0000 (Fri, 27 Jan 2023)");
script_tag(name:"cvss_base", value:"7.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2023-02-14 15:50:00 +0000 (Tue, 14 Feb 2023)");
script_cve_id("CVE-2023-22468", "CVE-2023-23615", "CVE-2023-23620", "CVE-2023-23621",
"CVE-2023-23624", "CVE-2023-22739", "CVE-2023-25167");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Discourse 3.1.x < 3.1.0.beta2 Multiple Vulnerabilities");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2023 Greenbone Networks GmbH");
script_family("Web application abuses");
script_dependencies("gb_discourse_detect.nasl");
script_mandatory_keys("discourse/detected");
script_tag(name:"summary", value:"Discourse is prone to multiple vulnerabilities.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The following vulnerabilities exist:
- CVE-2023-22468: Stored XSS in local oneboxes
- CVE-2023-23615: Malicious users can create spam topics as any user
- CVE-2023-23620: Restricted tag routes leak topic information
- CVE-2023-23621: ReDoS in user agent parsing
- CVE-2023-23624: Exclude_tags param could leak which topics had a specific hidden tag
- CVE-2023-22739: DoS through topic drafts
- CVE-2023-25167: ReDoS through installing themes via git");
script_tag(name:"affected", value:"Discourse versions 3.1.x prior to 3.1.0.beta2.");
script_tag(name:"solution", value:"Update to version 3.1.0.beta2 or later.");
script_xref(name:"URL", value:"https://github.com/discourse/discourse/security/advisories/GHSA-8mr2-xf8r-wr8m");
script_xref(name:"URL", value:"https://github.com/discourse/discourse/security/advisories/GHSA-7mf3-5v84-wxq8");
script_xref(name:"URL", value:"https://github.com/discourse/discourse/security/advisories/GHSA-hvj9-g84x-5prx");
script_xref(name:"URL", value:"https://github.com/discourse/discourse/security/advisories/GHSA-mrfp-54hf-jrcv");
script_xref(name:"URL", value:"https://github.com/discourse/discourse/security/advisories/GHSA-qgj5-g5vf-fm7q");
script_xref(name:"URL", value:"https://github.com/discourse/discourse/security/advisories/GHSA-rqgr-g6v7-jcfc");
script_xref(name:"URL", value:"https://github.com/discourse/discourse/security/advisories/GHSA-4w55-w26q-r35w");
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: "3.1.0.beta1", test_version_up: "3.1.0.beta2")) {
report = report_fixed_ver(installed_version: version, fixed_version: "3.1.0.beta2", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);
github.com/discourse/discourse/security/advisories/GHSA-4w55-w26q-r35w
github.com/discourse/discourse/security/advisories/GHSA-7mf3-5v84-wxq8
github.com/discourse/discourse/security/advisories/GHSA-8mr2-xf8r-wr8m
github.com/discourse/discourse/security/advisories/GHSA-hvj9-g84x-5prx
github.com/discourse/discourse/security/advisories/GHSA-mrfp-54hf-jrcv
github.com/discourse/discourse/security/advisories/GHSA-qgj5-g5vf-fm7q
github.com/discourse/discourse/security/advisories/GHSA-rqgr-g6v7-jcfc
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
5.7 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
34.7%