Greeny WordPress theme: PHP Object Injection via untrusted data
Summary
The Greeny WordPress theme up to and including version 2.10.0 deserializes untrusted data, which allows PHP object injection. The flaw can be triggered without authentication over the network, and according to the CNA record, an attacker can impact confidentiality, integrity and availability. Whether an attacker can achieve code execution depends on gadget chains available on the site, which could not be confirmed.
Affected
- Greeny WordPress theme, all versions up to and including 2.10.0
- Vendor per CVE record: ThemeREX Group; ThemeForest listing credits axiomthemes
Fixed in
Unknown. No fixed version has been published by the vendor or Patchstack at the time of research.
Workaround
- Patchstack reports a mitigation rule that can block attacks until an official patch is available (third-party mirror, not verified on the Patchstack site)
- Use a WAF with virtual patching in front of the website, if available
- Restrict access to the admin area and review logs for unusual requests
Exploitation
- CISA SSVC: exploitation none, automatable yes, technical impact total
- Not listed in CISA KEV
- No public proof of concept found
- Patchstack expects exploitation; this is a third-party prediction, not an observed attack
- EPSS approx. 0.003
Our recommendation
- Check whether any website uses the Greeny theme and confirm the installed version
- Treat affected sites as urgent: deactivate and replace the theme if it is not needed
- Apply a WAF or virtual patch until an official fix is available
- Contact the theme vendor for a fix date and monitor for updates
- Review logs and backups; check data protection obligations if personal data is processed
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Patchstack advisory patchstack.com
- CVE record and NVD data (OpenCVE) app.opencve.io
- CNA version data (CVEList) vulners.com
- Patchstack advisory mirror cve.imfht.com
- ThemeForest product page themeforest.net
- NVD entry via mirror (PT-2026-109584) vulners.com
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, 19:51.
Original description (NVD)
Deserialization of Untrusted Data vulnerability in ThemeREX Group Greeny greeny allows Object Injection.This issue affects Greeny: from n/a through 2.10.0.
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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