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.

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Fixes

Solution

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Workaround

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History

Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-94

Tue, 01 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-74
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 01 Sep 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Mw Wp Form Project
Mw Wp Form Project mw Wp Form
Wordpress
Wordpress wordpress
Vendors & Products Mw Wp Form Project
Mw Wp Form Project mw Wp Form
Wordpress
Wordpress wordpress

Tue, 01 Sep 2026 08:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-94

Tue, 01 Sep 2026 07:45:00 +0000

Type Values Removed Values Added
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.
Title MW WP Form < 5.1.5 - Unauthenticated Arbitrary Shortcode Execution via Completion Message Merge Tags
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-09-01T12:20:29.709Z

Reserved: 2026-08-24T11:38:41.024Z

Link: CVE-2026-78363

cve-icon Vulnrichment

Updated: 2026-09-01T12:19:00.626Z

cve-icon NVD

Status : Deferred

Published: 2026-09-01T08:17:01.510

Modified: 2026-09-01T20:50:58.753

Link: CVE-2026-78363

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-02T02:30:04Z

Weaknesses