PHP 8.5.x < 8.5.9 Multiple Vulnerabilities SQLI

critical Nessus Plugin ID 331218

Synopsis

The version PHP running on the remote web server is affected by multiple vulnerabilities.

Description

The version of PHP installed on the remote host is prior to 8.5.9. It is, therefore, affected by multiple vulnerabilities as referenced in the Version 8.5.9 advisory.

- Improper escaping of backslashes in attacker-provided parameters would allow for trivial SQL injection in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9. (CVE-2026-17543)

- Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4.* before 8.4.24 and from 8.5.* before 8.5.9. (CVE-2026-17544)

- Circular symbolic links in phar archives could lead to unbounded recursion, exhausting the C stack and crashing the PHP process, in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9. (CVE-2026-7260)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to PHP version 8.5.9 or later.

Plugin Details

Severity: Critical

ID: 331218

File Name: php_8_5_9.nasl

Version: 1.1

Type: Remote

Family: CGI abuses

Published: 7/30/2026

Updated: 7/30/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.13

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2026-17543

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-17544

Vulnerability Information

CPE: cpe:/a:php:php

Required KB Items: www/PHP, installed_sw/PHP

Exploit Ease: No known exploits are available

Patch Publication Date: 7/30/2026

Vulnerability Publication Date: 7/30/2026

Reference Information

CVE: CVE-2026-17543, CVE-2026-17544, CVE-2026-7260, CVE-2026-9672

Detections

Analytics