Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Unauthenticated network XSS with required victim interaction and Changed scope; A:N assessed as no realistic availability impact from client-side script injection.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in Survey Maker <= 5.2.3.3 versions.
AnalysisAI
Unauthenticated Cross-Site Scripting in the Survey Maker WordPress plugin (versions <= 5.2.3.3) permits remote attackers without any credentials to inject arbitrary JavaScript that executes in a victim's browser when they interact with an affected survey page. The CVSS Changed scope (S:C) confirms the payload crosses from the plugin context into the victim's browser session, enabling session cookie theft, credential harvesting, or unauthorized actions performed on behalf of the victim. No public exploit code or CISA KEV listing has been identified at time of analysis.
Technical ContextAI
Survey Maker is a WordPress form/survey plugin developed by AYS Pro (CPE: cpe:2.3:a:ays_pro:survey_maker:*:*:*:*:*:*:*:*). CWE-79 (Improper Neutralization of Input During Web Page Generation) identifies the root cause as insufficient sanitization or output escaping of user-controlled input before it is rendered in the browser DOM. The CVSS vector's PR:N confirms no authentication is required to submit the malicious payload, consistent with a reflected or stored XSS reachable via public survey submission endpoints. UI:R indicates the injected script only executes when a victim loads or interacts with the affected page - a classic reflected or stored XSS trigger model. The Changed scope (S:C) is standard for XSS, reflecting that the impact crosses from the server-side plugin boundary into the victim's browser security context.
RemediationAI
Update the Survey Maker plugin to a version higher than 5.2.3.3 via the WordPress admin dashboard under Plugins > Installed Plugins > Update, or download the latest release from the WordPress.org plugin repository. Consult the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/survey-maker/vulnerability/wordpress-survey-maker-plugin-5-2-3-3-cross-site-scripting-xss-vulnerability to confirm the exact patched release version, as the input data does not specify one. If immediate patching is not feasible, deactivate the Survey Maker plugin entirely to eliminate the attack surface - note this will take surveys offline. As a secondary compensating control, deploying a WAF rule targeting common XSS payloads in survey form parameters can reduce risk, though it may cause false positives on legitimate special-character input and should not replace patching. Restricting public survey access to authenticated users only (if supported by plugin configuration) would remove the unauthenticated attack vector.
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-53986
GHSA-g4gq-cg7r-jrv8