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Contact Form <= 3.82 — Authorization Bypass

274e5568-b600-4085-8406-9f9d5d4fc35aPublished · Updated

Action summary

Affected: ≤3.82Update to 3.83 or newer

All remediation steps
Severity
Medium6.4
CVSS
6.4
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:C Scope
Changed
C:L Confidentiality
Low
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-862 Missing Authorization
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

Contact Form by BestWebSoft – Advanced WP Contact Form Builder for WordPress contact-form-plugin

  1. Affected≤ 3.82
  2. Patched in3.83

Update to 3.83 or newer.

You are affected if you run ≤ 3.82. Version 3.83 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Contact Form by BestWebSoft – Advanced WP Contact Form Builder for WordPress.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 3.83, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Contact Form by BestWebSoft – Advanced WP Contact Form Builder for WordPress to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Voxel@Night.

The Contact Form plugin WordPress is vulnerable to authorization bypass in versions up to, and including, 3.82. This is due to missing capability checks and nonce validation on the add and remove language AJAX functions. This makes it possible for authenticated subscriber+ attackers to use the AJAX actions to manipulate the language of the vulnerable service and potentially inject malicious web scripts.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Contact Form by BestWebSoft – Advanced WP Contact Form Builder for WordPress

All 10
More vulnerabilities in Contact Form by BestWebSoft – Advanced WP Contact Form Builder for WordPress
SeverityVulnerabilityCVEPublished
Medium4.3Missing Authorization
≤4.3.6Update to 4.3.7
CVE-2025-63056
Medium6.1Reflected Cross-Site Scripting via cntctfrm_contact_subject
≤4.2.8Update to 4.2.9
CVE-2024-2200
Medium6.1Reflected Cross-Site Scripting via cntctfrm_contact_address
≤4.2.8Update to 4.2.9
CVE-2024-2198
Medium6.1Cross-Site Scripting
<4.0.2Update to 4.0.2
CVE-2016-10869
Medium6.1ReflectedCross-Site Scripting
<3.96Update to 3.96
CVE-2015-9295

Same weakness (Missing Authorization)

All Missing Authorization
Other Missing Authorization vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent HeaderCVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form SubmissionCVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' ParameterCVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 6.4

  2. Record last updated

Sources & licenses

Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
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.

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