Advanced Form Integration <= 2.10.2 — Unauthenticated PHP Object Injection via $_POST Parameters
CVE-2026-104738Published · Updated Action summary
Affected: ≤2.10.2Update to 2.10.3 or newer
All remediation steps- Severity
- High8.1
- CVSS
- 8.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:HAttack complexity- High
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-502 PHP Object Injection
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Advanced Form Integration — Connect Forms to 300+ Apps advanced-form-integration
- Affected≤ 2.10.2
- Patched in2.10.3
Update to 2.10.3 or newer.
You are affected if you run ≤ 2.10.2. Version 2.10.3 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Advanced Form Integration — Connect Forms to 300+ Apps.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 2.10.3, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Advanced Form Integration — Connect Forms to 300+ Apps to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Wordfence PRISM.
The Advanced Form Integration — Connect Forms to 300+ Apps plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.10.2 via deserialization of untrusted input . This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. Exploitation requires that an administrator has previously configured at least one active NexForms integration (status=1) in the plugin's database table; in the free tier, only POST parameter keys containing the substrings 'name', 'email', 'first', or 'last' are routed to the vulnerable normalizer.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Advanced Form Integration — Connect Forms to 300+ Apps
All 15| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.1 | Unauthenticated Unverified Password Change to Authentication Bypass / Privilege Escalation via Contact Form 7 Submission to Ultimate Member Update Profile Field Action ≤2.9.0Update to 2.10.0 | CVE-2026-104797 | |
| Medium4.3 | Missing Authorization to Authenticated (Subscriber+) Arbitrary MailUp OAuth Token Overwrite via auth_redirect() Function ≤2.6.0Update to 2.7.0 | CVE-2026-16587 | |
| High8.1 | Unauthenticated Privilege Escalation ≤2.1.0Update to 2.1.1 | CVE-2026-11794 | |
| Medium4.3 | Missing Authorization ≤1.126.12Update to 1.127.0 | CVE-2026-42659 | |
| Medium4.4 | Authenticated (Admin+) Stored Cross-Site Scripting ≤1.99.0Update to 1.100.0 | CVE-2024-13123 |
- High8.1Unauthenticated Unverified Password Change to Authentication Bypass / Privilege Escalation via Contact Form 7 Submission to Ultimate Member Update Profile Field Action
≤2.9.0Update to 2.10.0
- Medium4.3Missing Authorization to Authenticated (Subscriber+) Arbitrary MailUp OAuth Token Overwrite via auth_redirect() Function
≤2.6.0Update to 2.7.0
- High8.1Unauthenticated Privilege Escalation
≤2.1.0Update to 2.1.1
- Medium4.3Missing Authorization
≤1.126.12Update to 1.127.0
- Medium4.4Authenticated (Admin+) Stored Cross-Site Scripting
≤1.99.0Update to 1.100.0
Same weakness (PHP Object Injection)
All PHP Object Injection| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
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Timeline
CVE published
Severity high, CVSS 8.1
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.