CVE-2026-5395: IDOR in Fluent Forms Contact Forms
Platform
wordpress
Component
fluentform
Fixed in
6.2.1
CVE-2026-5395 describes an Insecure Direct Object Reference (IDOR) vulnerability discovered in the Fluent Forms WordPress plugin. This flaw allows authenticated attackers with manager-level access or higher to bypass form-level access restrictions, potentially exposing sensitive data. The vulnerability impacts versions 0.0.0 through 6.2.0, and a patch is available in version 6.2.1.
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Impact and Attack Scenarios
An attacker exploiting this IDOR vulnerability can gain unauthorized access to form submissions they are not authorized to view. This could involve extracting Personally Identifiable Information (PII) collected through forms, such as names, email addresses, and other sensitive data. Furthermore, the vulnerability allows attackers to export data from arbitrary database tables and even enumerate database table names by observing error messages. The blast radius extends to any WordPress site utilizing the vulnerable Fluent Forms plugin, particularly those handling sensitive user data.
Exploitation Context
The vulnerability was published on 2026-05-14. Currently, there are no reports of active exploitation campaigns targeting CVE-2026-5395. The vulnerability is not listed on KEV or EPSS, suggesting a low to medium probability of exploitation. Public Proof-of-Concept (POC) code may emerge, increasing the risk.
Threat Intelligence
Exploit Status
CISA SSVC
CVSS Vector
What do these metrics mean?
- Attack Vector
- Network — remotely exploitable over the internet. No physical or local access required. Widest attack surface.
- Attack Complexity
- Low — no special conditions required. Attacker can exploit reliably without depending on rare configurations or timing.
- Privileges Required
- None — unauthenticated. No login or credentials needed to exploit.
- User Interaction
- None — attack is automatic and silent. Victim does nothing: no click, no file open.
- Scope
- Unchanged — impact is limited to the vulnerable component itself.
- Confidentiality
- High — complete confidentiality loss. Attacker can read all data: credentials, keys, personal data.
- Integrity
- Low — attacker can modify some data with limited scope or impact.
- Availability
- None — no availability impact. Service remains fully operational.
Affected Software
Weakness Classification (CWE)
Timeline
- Reserved
- Published
Mitigation and Workarounds
The primary mitigation for CVE-2026-5395 is to immediately upgrade the Fluent Forms plugin to version 6.2.1 or later. If upgrading is not feasible due to compatibility issues or breaking changes, consider temporarily restricting access to the exportEntries function through WordPress's built-in access control mechanisms. While not a complete fix, this can limit the potential impact. Monitor WordPress logs for suspicious activity related to database access or form exports. After upgrading, confirm the fix by attempting to access form submissions from a user account without the necessary permissions; access should be denied.
How to fix
Update to version 6.2.1, or a newer patched version
Frequently asked questions
What is CVE-2026-5395 — IDOR in Fluent Forms Contact Forms?
CVE-2026-5395 is an Insecure Direct Object Reference (IDOR) vulnerability in the Fluent Forms WordPress plugin, allowing authenticated attackers to access unauthorized form submissions and database data.
Am I affected by CVE-2026-5395 in Fluent Forms Contact Forms?
If you are using Fluent Forms version 0.0.0 through 6.2.0 on your WordPress site, you are potentially affected by this vulnerability. Check your plugin version immediately.
How do I fix CVE-2026-5395 in Fluent Forms Contact Forms?
Upgrade the Fluent Forms plugin to version 6.2.1 or later to resolve the vulnerability. If upgrading is not immediately possible, restrict access to the exportEntries function.
Is CVE-2026-5395 being actively exploited?
As of now, there are no confirmed reports of active exploitation campaigns targeting CVE-2026-5395, but the risk remains until patched.
Where can I find the official Fluent Forms advisory for CVE-2026-5395?
Refer to the official Fluent Forms website and WordPress plugin repository for the latest advisory and update information regarding CVE-2026-5395.
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