Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder <= 5.1.19 - Authenticated (Administrator+) Stored Cross-Site Scripting

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Summary

CVECVE-2024-6520
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-07-27 12:15:11 UTC
Updated2026-04-08 17:19:12 UTC
DescriptionThe Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom error message in all versions up to, and including, 5.1.19 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Risk And Classification

Primary CVSS: v3.1 4.8 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.1[email protected]Primary4.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED4.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Fluentforms Contact Form All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Techjewel Fluent Forms Customizable Contact Forms Survey Quiz Conversational Form Builder affected 5.1.19 semver Not specified
ADP Web-dorado Wp Form Builder affected 5.1.19 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/changeset/3125227 af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Patch
wordpress.org/plugins/fluentform af854a3a-2127-422b-91ae-364da2661108 wordpress.org Release Notes
www.wordfence.com/threat-intel/vulnerabilities/id/0a30d35c-9883-4b0f-83a2-49440... af854a3a-2127-422b-91ae-364da2661108 www.wordfence.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Joel Indra (en)

Additional Advisory Data

SourceTimeEvent
CNA2024-07-26T23:27:30.000ZDisclosed
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