The SurveyJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.5.3 via survey result submissions. This is due to insufficient input sanitization and output escaping. The public survey page exposes the nonce required for submission, allowing unauthenticated attackers to submit HTML-encoded payloads that are decoded and rendered as executable HTML when an administrator views survey results, leading to stored XSS in the admin context.

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Fixes

Solution

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Workaround

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History

Sat, 21 Mar 2026 05:30:00 +0000

Type Values Removed Values Added
Description The SurveyJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.5.3 via survey result submissions. This is due to insufficient input sanitization and output escaping. The public survey page exposes the nonce required for submission, allowing unauthenticated attackers to submit HTML-encoded payloads that are decoded and rendered as executable HTML when an administrator views survey results, leading to stored XSS in the admin context.
Title SurveyJS: Drag & Drop Form Builder <= 2.5.3 - Unauthenticated Stored Cross-Site Scripting
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-03-21T03:26:31.223Z

Reserved: 2026-02-12T23:54:31.843Z

Link: CVE-2026-2440

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-21T04:17:02.220

Modified: 2026-03-21T04:17:02.220

Link: CVE-2026-2440

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses