CVE-2026-104010 (GCVE-0-2026-104010)
Vulnerability from cvelistv5 – Published: 2026-11-06 11:17 – Updated: 2026-11-06 15:15
VLAI
EPSS
VEX
Title
WPSyncSheets For Contact Form 7 <= 1.8.0 - Unauthenticated PHP Object Injection to Remote Code Execution via Untrusted CF7 Submission Field via maybe_unserialize()
Summary
The WPSyncSheets For Contact Form 7 – CF7 Google Sheets Connector & Save to Database plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.8.0 via the 'any non-system CF7 field (e.g., your-message)' parameter parameter. This is due to insufficient sanitization of CF7 submission field values before database storage and the absence of an allowed_classes restriction on maybe_unserialize() during admin retrieval. This makes it possible for unauthenticated attackers to execute code on the server. Successful exploitation of the remote code execution gadget chain requires that a Google Sheets access token be configured in the plugin (its primary advertised feature), as this triggers autoloading of the bundled Monolog 2.10.0 library whose classes form the exploitable gadget chain; however, the underlying PHP Object Injection occurs regardless.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 15:11 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Wordfence
CNA
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| creativewerkdesigns | WPSyncSheets For Contact Form 7 – CF7 Google Sheets Connector & Save to Database |
Affected:
0 , ≤ 1.8.0
(semver)
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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