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.
Published: 2026-09-01
Score: 4.8 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-09-01T07:39:08.429Z

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

Link: CVE-2026-78363

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-78363

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-01T08:30:03Z

Weaknesses