CVE-2023-48763

JetFormBuilder <= 3.1.4 - Unauthenticated Content Injection

2023-11-28 00:00

Strategic Overview

Status: Patched in 3.1.5
Affected Plugin: JetFormBuilder — Dynamic Blocks Form Builder
Affected Version: <= 3.1.4
CVSS: 5.3Medium
Weakness type: CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVE: CVE-2023-48763

View all JetFormBuilder — Dynamic Blocks Form Builder vulnerabilities

At a glance

CVE-2023-48763 is a medium-severity Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the JetFormBuilder WordPress plugin, affecting versions <= 3.1.4. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.1.5; sites on affected versions should update now. Disclosed November 2023, reported by Revan Arifio.

Vulnerability Overview

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to content injection in all versions up to, and including, 3.1.4. This makes it possible for unauthenticated attackers to inject content onto the site.

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 privileges on the target site, and no interaction from a victim user.

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Remediation

Update to version 3.1.5, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: JetFormBuilder 3.1.5 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-48763 https://www.wordfence.com/threat-intel/vulnerabilities/id/f0343861-a376-43ea-826e-277c2a5ea635 https://nvd.nist.gov/vuln/detail/CVE-2023-48763

Related records

Other vulnerabilities in JetFormBuilder — Dynamic Blocks Form Builder

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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