CVE-2026-3576 (GCVE-0-2026-3576)

Vulnerability from cvelistv5 – Published: 2026-07-11 03:44 – Updated: 2026-07-13 16:13
VLAI
Title
Planyo online reservation system <= 3.0 - Unauthenticated Server-Side Request Forgery via 'ulap_url' Parameter
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 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.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 16:13 UTC
CWE
  • CWE-20 - Improper Input Validation
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2370 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
xtreeme Planyo online reservation system Affected: 0 , ≤ 3.0 (semver)
guessed Create a notification for this product.
Credits
chaeyp Ronnachai Sretawat Na Ayutaya (Simonhaskelly) Ronnachai Chaipha (rxnr)
Show details on NVD website
To clipboard 

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