Survey Maker <= 4.0.9 — IP Address Spoofing
CVE-2023-35764Published · Updated Action summary
Affected: ≤4.0.9Update to 4.1.0 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Survey Maker by AYS survey-maker
- Affected≤ 4.0.9
- Patched in4.1.0
Update to 4.1.0 or newer.
You are affected if you run ≤ 4.0.9. Version 4.1.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Survey Maker by AYS.
- 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 4.1.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Survey Maker by AYS to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Atsuya Yoda.
The Survey Maker – Best WordPress Survey Plugin plugin for WordPress is vulnerable to IP Address Spoofing in all versions up to, and including, 4.0.9 due to insufficient IP address validation and/or use of user-supplied HTTP headers as a primary method for IP retrieval. This makes it possible for unauthenticated attackers to spoof their IP address.
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 Survey Maker by AYS
All 26| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤5.2.3.3Update to 5.2.3.4 | CVE-2026-65565 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤5.2.2.5Update to 5.2.2.6 | CVE-2026-57361 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting <5.1.7.7Update to 5.1.7.7 | CVE-2026-26370 | |
| Medium4.3 | Missing Authorization ≤5.1.9.4Update to 5.1.9.5 | CVE-2025-64276 | |
| Medium5.3 | Missing Authorization to Unauthenticated Information Exposure ≤5.1.9.4Update to 5.1.9.5 | CVE-2025-12891 |
- High7.2Unauthenticated Stored Cross-Site Scripting
≤5.2.3.3Update to 5.2.3.4
- High7.2Unauthenticated Stored Cross-Site Scripting
≤5.2.2.5Update to 5.2.2.6
- High7.2Unauthenticated Stored Cross-Site Scripting
<5.1.7.7Update to 5.1.7.7
- Medium4.3Missing Authorization
≤5.1.9.4Update to 5.1.9.5
- Medium5.3Missing Authorization to Unauthenticated Information Exposure
≤5.1.9.4Update to 5.1.9.5
Timeline
CVE published
Severity medium, CVSS 5.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. 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.