MW WP Form <= 5.1.2 — Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'post_id' Query Parameter
CVE-2026-6206Published · Updated Action summary
Affected: ≤5.1.2Update to 5.1.3 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:L/I:N/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:LConfidentiality- Low
I:NIntegrity- None
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
MW WP Form mw-wp-form
- Affected≤ 5.1.2
- Patched in5.1.3
Update to 5.1.3 or newer.
You are affected if you run ≤ 5.1.2. Version 5.1.3 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under MW WP Form.
- 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 5.1.3, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch MW WP Form to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to alex_henry20.
The MW WP Form plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 5.1.2 via the _get_post_property_from_querystring() function due to insufficient restrictions on which posts can be included. This makes it possible for unauthenticated attackers to extract data from password protected, private, or draft posts that they should not have access to.
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 MW WP Form
All 14| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'post_id' Parameter ≤5.1.7Update to 5.1.8 | CVE-2026-92086 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via 'post_id' Parameter (via stored form-submitted post meta) ≤5.1.7Update to 5.1.8 | CVE-2026-96567 | |
| Medium4.4 | Authenticated (Editor+) Stored Cross-Site Scripting <5.1.6Update to 5.1.6 | CVE-2026-78364 | |
| Medium6.5 | Unauthenticated Arbitrary Shortcode Execution <5.1.5Update to 5.1.5 | CVE-2026-78363 | |
| Medium4.4 | Authenticated (Editor+) Stored Cross-Site Scripting via 'memo' Parameter ≤5.1.3Update to 5.1.4 | CVE-2026-8853 |
- Medium5.3Unauthenticated Sensitive Information Exposure in 'post_id' Parameter
≤5.1.7Update to 5.1.8
- High7.2Unauthenticated Stored Cross-Site Scripting via 'post_id' Parameter (via stored form-submitted post meta)
≤5.1.7Update to 5.1.8
- Medium4.4Authenticated (Editor+) Stored Cross-Site Scripting
<5.1.6Update to 5.1.6
- Medium6.5Unauthenticated Arbitrary Shortcode Execution
<5.1.5Update to 5.1.5
- Medium4.4Authenticated (Editor+) Stored Cross-Site Scripting via 'memo' Parameter
≤5.1.3Update to 5.1.4
Timeline
CVE published
Severity medium, CVSS 5.3
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.