CVE-2026-3576
Planyo online reservation system <= 3.0 - Unauthenticated Server-Side Request Forgery via 'ulap_url' Parameter
- 7.2HighCVSS base score
- 8.8%Exploitation in 30 daysEPSS · top 4.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 3Public exploitsMetasploit, Nuclei and Exploit-DB
Description
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module, a Nuclei template and an Exploit-DB entry for it.
Show the exploits3
Metasploit modules1 module
- Wordpress Planyo Online Reservation System Arbitrary File Read (CVE-2026-3576) (Metasploit module) (opens in a new tab)
auxiliary/gather/wp_planyo_lfi_cve_2026_3576Rank normaldisclosed 10 Jul 2026
Nuclei templates1 template
- Planyo Online Reservation System <= 3.0 - Arbitrary File Read (Nuclei template) (opens in a new tab)
http/cves/2026/CVE-2026-3576.yamlSeverity high
Exploit-DB1 entry
- Planyo_Online_Reservation_System 3.0 - Arbitrary File Read via SSRF (Exploit-DB entry) (opens in a new tab)
EDB-ID 52636webapps, multiplepublished 11 Aug 2026Not verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By Wordfence
- 4 months later
· 4 months later
Published
- 2 days later
· 2 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 8.8% · top 4.7% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Affected products
xtreeme · Planyo online reservation system
- affected ≤ 3.0
References
References12
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5038d12a-e119-4ab7-aadc-69b765ae7027?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L84 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L84 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L96 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L96 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L59 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L59 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L120 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L120 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/trunk/ulap.php#L118 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/planyo-online-reservation-system/tags/2.7/ulap.php#L118 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3488647%40planyo-online-reservation-system&new=3488647%40planyo-online-reservation-system (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-43137 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-3576)Record last updated .