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Not in CISA KEV
HIGH severity

CVE-2018-19458 — php-proxy-app

HIGH

CVE-2018-19458 is a high-severity (CVSS 7.5) Improper Authentication vulnerability in athlon1600/php-proxy-app. 3 public exploit or proof-of-concept references are indexed, so weaponization risk is real. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Unauthenticated File Read in PHP Proxy

Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
3 known
Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
32.9%probability of exploitation in next 30 days
Moderate Risk0.00%
Lower risk than most CVEs98th percentile — riskier than 98% of all scored CVEsHighest risk
18.8%43.9%69.0%94.1%80.0%32.9%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘athlon1600/php-proxy-app

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

In PHP Proxy 3.0.3, any user can read files from the server without authentication due to an index.php?q=file:/// LFI URI, a different vulnerability than CVE-2018-19246.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐘Packagistathlon1600/php-proxy-appall versionsNo fix

Affected Products

1 product · 1 configurations
Application
php-proxyphp-proxy
1 version
3.0.3
Exploits & PoCs
3

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-45780webappsphp

PHP Proxy 3.0.3 - Local File Inclusion

by AkkuS · Nov 5, 2018

Exploit-DB Source

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for athlon1600/php-proxy-app, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of athlon1600/php-proxy-app for CVE-2018-19458. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

How to detect CVE-2018-19458

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2018-19458 -u https://target
Template
PHP Proxy 3.0.3 - Local File Inclusion
Severity
high
Impact
Successful exploitation of this vulnerability can lead to unauthorized access to sensitive information, remote code execution, and potential compromise of the affected system.
Remediation
Upgrade PHP Proxy to a version that is not affected by the vulnerability (3.0.4 or later) or apply the necessary patches provided by the vendor.

Template by ProjectDiscovery nuclei-templates (daffainfo), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

In PHP Proxy 3.0.3, any user can read files from the server without authentication due to an `index.php?q=file:///` LFI URI, a different vulnerability than CVE-2018-19246.
O3 Security · Impact-Aware SCA

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CVE-2018-19458: php-proxy-app (High 7.5)