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CVE-2018-19458PHP-Proxy Authentication Bypass

Unauthenticated File Read in PHP Proxy

Published May 14, 2022 · Updated Sep 16, 2024 · Also known as GHSA-3x3m-p2wx-g7cw

Key Facts

Patch immediately
  • CVE-2018-19458 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting PHP-Proxy, athlon1600/php-proxy-app (composer).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 33% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v3.1

7.5

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

EPSS (30-day exploit likelihood)

33%

Higher than 98.3% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

42/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

2

Proof-of-concept links

In-the-wild evidence

1

Reports of active use

Advisories And Exploit References

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 Products

2 affected entries in total
ProductAffected versionsFixed in
PHP-ProxyPHP-Proxy3.0.3n/a
athlon1600/php-proxy-appcomposerSee advisoryn/a

Timeline

  1. Publicly disclosed

    May 14, 2022

  2. Last updated

    Sep 16, 2024

Weakness Type

  • CWE-287 Improper Authentication

FAQ

Common Questions.

Is CVE-2018-19458 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.