ThemeREX Yacht Rental WordPress theme: Unauthenticated PHP Object Injection
Summary
The Yacht Rental WordPress theme by ThemeREX up to and including version 2.6 contains an unauthenticated PHP Object Injection flaw (CWE-502) that can be triggered over the network without a login. A successful attacker could manipulate how the website processes serialized data, which may allow harmful actions on the server, depending on the gadget chains available in the installed plugins and libraries. The CNA rates the issue CVSS 9.8 (critical), and Patchstack classifies it as high priority.
Affected
- ThemeREX Yacht Rental WordPress theme, all versions up to and including 2.6
- Versions after 2.6: Unknown.
Fixed in
- Unknown. No vendor advisory or fixed version has been confirmed.
Workaround
- No documented workaround.
- Until a fix is confirmed: restrict or remove the theme on internet-facing sites, replace it with a maintained theme, or use a web application firewall (rules need vendor or Patchstack guidance).
Exploitation
- No evidence of exploitation in the wild; not listed in CISA KEV (per third-party tracker).
- Patchstack expects the flaw to be exploited and notes it is used in mass-exploit campaigns.
- No public proof of concept found; EPSS 0.00375 (single aggregator figure).
Our recommendation
- Inventory every WordPress site and check whether the Yacht Rental theme is installed and which version.
- Isolate or replace affected installs on internet-facing sites as a priority.
- Ask ThemeREX for the fixed release and advisory, and apply it once confirmed.
- Consider a WAF or Patchstack mitigation rule as an interim measure.
- Monitor web server logs for suspicious serialized payloads and review the site after any anomaly.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Patchstack advisory CVE-2026-62054 patchstack.com
- OpenCVE CVE-2026-62054 app.opencve.io
- HOL Guard CVE-2026-62054 hol.org
- Vulners CVE-2026-62054 vulners.com
- ThemeREX Yacht Rental product page themerex.net
- ThemeForest Yacht and Boat Rental Service listing themeforest.net
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 30 Oct 2026, 19:38.
Original description (NVD)
Unauthenticated PHP Object Injection in Yacht Rental <= 2.6 versions.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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