WineShop WordPress theme: PHP Object Injection
Summary
The WineShop WordPress theme up to and including version 3.20 contains an unauthenticated PHP Object Injection flaw (CWE-502). An remote attacker can send crafted serialized data to the website without logging in or any user interaction. Patchstack rates it as high priority and CISA SSVC lists it as automatable with total technical impact; exploitation in the wild is not confirmed. Whether code execution is actually reachable depends on the PHP classes present in the installed code and plugins.
Affected
- WineShop WordPress theme, all versions up to and including 3.20
- Newer releases (for example 3.23.0 on ThemeForest) are not confirmed as fixed for this CVE
Fixed in
Unknown. No vendor advisory or confirmed fixed version was found.
Workaround
- No vendor or Patchstack workaround confirmed in the sources.
- Patchstack has reportedly issued a mitigation rule; verify this in the Patchstack entry before relying on it.
Exploitation
- Not listed in CISA KEV.
- CISA SSVC: exploitation none, automatable yes, technical impact total.
- No public proof of concept found in searches; this does not prove none exists.
Our recommendation
- Check every client WordPress site for the WineShop theme and its version, including child themes and bundled copies.
- If the version is 3.20 or older, or cannot be confirmed, deactivate and remove the theme if it is not needed.
- If it is needed, place a WAF or virtual patch in front of the site and check with ThemeREX or Patchstack for an official fix.
- Review sites for unexpected admin accounts and files, as they may already be compromised.
- Monitor the Patchstack entry and ThemeREX for a fix.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Patchstack advisory CVE-2026-62090 patchstack.com
- OpenCVE CVE-2026-62090 app.opencve.io
- GitHub alert (CISA KEV status) github.com
- Aggregator entry (fix status not reported) hol.org
- ThemeForest WineShop listing themeforest.net
- threatint CVE record cve.threatint.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, 19:35.
Original description (NVD)
Unauthenticated PHP Object Injection in WineShop <= 3.20 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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