Oracle APEX (CVE-2026-54285) (July 2026 CPU)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(330304);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/28");

  script_cve_id("CVE-2026-54285");

  script_name(english:"Oracle APEX (CVE-2026-54285) (July 2026 CPU)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote host is affected by a vulnerability in Oracle APEX (component: Third Party (OpenTelemetry)) as
referenced in the July 2026 Oracle Critical Patch Update (CPU) advisory.

  - Vulnerability in the Oracle APEX product (component: Third Party (OpenTelemetry)). Easily exploitable
    vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle APEX.
    Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of
    service (partial DOS) of Oracle APEX. (CVE-2026-54285)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/docs/tech/security-alerts/cpujul2026csaf.json");
  script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/security-alerts/cpujul2026.html");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the July 2026 Oracle Critical Patch Update advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-54285");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/07/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/28");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:application_express");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("oracle_apex_web_detect.nbin");
  script_require_ports("Services/www", 443);

  exit(0);
}

include('vcf.inc');
include('http.inc');

var port = get_http_port(default:443);

var app_info = vcf::get_app_info(app:'Oracle Application Express (APEX)', port:port, webapp:TRUE);

vcf::check_granularity(app_info:app_info, sig_segments:3);

var constraints = [
  { 'min_version':'24.2.0', 'fixed_version':'24.2.18', 'fixed_display':'24.2.18 Bundle Patch or later' },
  { 'min_version':'26.1.0', 'fixed_version':'26.1.2', 'fixed_display':'26.1.2 Bundle Patch or later' }
];

vcf::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_WARNING
);