CVE-2022-1647

FormCraft Basic <= 1.2.5 - Authenticated (Admin+) Stored Cross-Site Scripting

2022-05-16 00:00

Strategic Overview

Status: Patched in 1.2.6
Affected Plugin: FormCraft – Form Builder
Affected Version: < 1.2.6
CVSS: 5.5Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2022-1647

View all FormCraft – Form Builder vulnerabilities

At a glance

CVE-2022-1647 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the FormCraft WordPress plugin, affecting versions < 1.2.6. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Admin level or above. The issue is fixed in version 1.2.6; sites on affected versions should update now. Disclosed May 2022, reported by Chiragh Arora.

Vulnerability Overview

The FormCraft WordPress plugin before 1.2.6 does not sanitise and escape Field Labels, allowing high privilege users such as admin to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

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

Reaching this weakness in FormCraft < 1.2.6 takes an account at Admin level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For FormCraft the fix is 1.2.6: builds < 1.2.6 are affected, anything from 1.2.6 onward is not.

Remediation

Update to version 1.2.6, or a newer patched version

How does WordSec protect against this?

An attacker needs Admin access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: FormCraft 1.2.6 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-1647 https://www.wordfence.com/threat-intel/vulnerabilities/id/c648fbb1-cc12-4334-b334-0f784542ab6d https://nvd.nist.gov/vuln/detail/CVE-2022-1647

Related records

Same weakness class

Other vulnerabilities in FormCraft – Form Builder

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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