Le Truffe WordPress theme: PHP Object Injection without authentication
Summary
The WordPress theme Le Truffe up to and including version 1.1.7 contains an unauthenticated PHP Object Injection flaw (CWE-502). An unauthenticated remote attacker can send crafted serialized data to the site, which may lead to code execution, file manipulation or denial of service, depending on the code available on the server. The CVSS base score is 9.8 (critical), and Patchstack expects mass exploitation.
Affected
- Le Truffe WordPress theme, versions up to and including 1.1.7
- Vendor for the theme: ThemeREX (according to the CVE record)
Fixed in
Unknown. No patched version was found in the sources reviewed.
Workaround
Unknown. No vendor workaround was found. Patchstack reports a mitigation rule that blocks attacks until an official patch is available.
Exploitation
- Unauthenticated and network-reachable, no user interaction required
- Not listed in the CISA KEV catalogue
- No public proof of concept found
- No confirmed exploitation in the wild found; Patchstack considers exploitation likely
Our recommendation
- Check whether any website uses the Le Truffe theme (Appearance > Themes or the theme folder)
- If it is installed and no fix exists, switch to a maintained theme and delete unused copies of the theme
- Consider a web application firewall or virtual patch in front of the site until a fix is available
- Keep WordPress core, plugins and PHP up to date
- Monitor the Patchstack entry for a fixed version and review web server logs for suspicious requests
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Patchstack advisory: Le Truffe theme PHP Object Injection patchstack.com
- Vulners CVE-2026-61998 vulners.com
- Vulners Patchstack entry vulners.com
- CVE-2026-61998 threatint record cve.threatint.com
- Strix AI CVE-2026-61998 www.strix.ai
- GitHub issue listing CISA KEV status github.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, 16:00.
Original description (NVD)
Unauthenticated PHP Object Injection in Le Truffe <= 1.1.7 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.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.