Form Builder <= 1.9.8.3 - Authenticated Stored Cross-Site Scripting

2021-08-09 00:00

Felipe Restrepo Rodriguez (pfelilpe)

Strategic Overview

Status

Patched in 1.9.8.4

Affected PluginForm Builder | Create Responsive Contact Forms

Affected Version<= 1.9.8.3

CVSS5.5Medium

CVECVE-2021-24513

View all Form Builder | Create Responsive Contact Forms vulnerabilities

Vulnerability Overview

The Form Builder | Create Responsive Contact Forms WordPress plugin before 1.9.8.4 does not sanitise or escape its Form Title, allowing high privilege users such as admin to set Cross-Site Scripting payload in them, even when the unfiltered_html capability is disallowed

Technical Analysis

REMEDIATION: Update to version 1.9.8.4, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2021-24513 https://www.wordfence.com/threat-intel/vulnerabilities/id/39041c15-dc85-49bc-b5d1-5b4bff05397b

CVSS Vector

5.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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