CVE-2026-78363
MW WP Form < 5.1.5 - Unauthenticated Arbitrary Shortcode Execution via Completion Message Merge Tags
- State
- Published
- Severity
- 4.8 Medium
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Reserved
- Aug 24, 2026
Description
The MW WP Form WordPress plugin before 5.1.5 does not prevent shortcodes in user-submitted values from being executed when it merges those values into a message that it later processes for shortcodes, allowing unauthenticated users to run any shortcode registered on the site. Exploitation requires the site to have been configured to echo a submitted value back to the visitor after submission.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.8 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | WPScan |
Weaknesses
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Products
| Product | Versions |
|---|---|
MW WP FormUnknown |
|
References
- https://wpscan.com/vulnerability/0569c5f7-2001-4364-a68b-451b73f3a32a/exploitvdb-entrytechnical-description
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