---
id: CVE-2026-3576
title: >-
  The Planyo Online Reservation System plugin for WordPress is vulnerable to
  Server-Side Request Forgery leading to Local File Inclusion in all versions up
  to, and including, 3.0
summary: >-
  The Planyo Online Reservation System plugin for WordPress is vulnerable to
  Server-Side Request Forgery leading to Local File Inclusion in all versions up
  to, and including, 3.0. The ulap.php file acts as an AJAX proxy and is
  directly acc…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-20
published: '2026-07-11'
updated: '2026-07-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-3576'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L118
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L120
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L59
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L84
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L96
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L118
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L120
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L59
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L84
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L96
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3488647%40planyo-online-reservation-system&new=3488647%40planyo-online-reservation-system
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/5038d12a-e119-4ab7-aadc-69b765ae7027?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - exploit-available
epss: 0.12943
epssPercentile: 0.96137
ingestedAt: '2026-07-11T23:16:20.494Z'
exploitAvailable: true
exploits:
  exploitdb: true
  github: 1
  githubRepos:
    - 'https://github.com/anirbala98/CVE-2026-3576'
  metasploit:
    - auxiliary/gather/wp_planyo_lfi_cve_2026_3576
  nuclei:
    - CVE-2026-3576
  checkedAt: '2026-09-23T07:14:02.196Z'
---

## Overview

The Planyo Online Reservation System plugin for WordPress is vulnerable to Server-Side Request Forgery leading to Local File Inclusion in all versions up to, and including, 3.0. The ulap.php file acts as an AJAX proxy and is directly accessible without WordPress bootstrapping or any authentication. The send_http_post() function validates the host of the provided URL against an allowlist that includes 'localhost', but critically fails to validate the URL scheme/protocol. This makes it possible for unauthenticated attackers to supply a file:// URL (e.g., file://localhost/etc/passwd) which bypasses the host allowlist check because parse_url() returns 'localhost' as the host. The URL is then passed to curl_init() or fopen(), both of which support the file:// protocol, allowing the attacker to read arbitrary local files on the server and have their contents returned in the HTTP response. This can lead to disclosure of sensitive files such as /etc/passwd, wp-config.php (containing database credentials and authentication keys), and other server-side files.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.