CVE-2023-23796Network attack vector

Spreadsheet command execution via unneutralized CSV formulas

Published Nov 7, 2023 · Updated Apr 28, 2026

CSV formula injection in Muneeb Form Builder | Create Responsive Contact Forms 1.9.9.0 and earlier allows remote attackers to plant formulas. Public sources do not identify the export function or field path; they state only that crafted formulas are not neutralized in generated CSV data. Exploitation requires an unauthenticated submission followed by a privileged user opening the exported file in spreadsheet software, enabling commands to run on that user’s computer.

CVSS severity4.7
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

CSV formula injection in Muneeb Form Builder | Create Responsive Contact Forms 1.9.9.0 and earlier allows remote attackers to plant formulas. Public sources do not identify the export function or field path; they state only that crafted formulas are not neutralized in generated CSV data. Exploitation requires an unauthenticated submission followed by a privileged user opening the exported file in spreadsheet software, enabling commands to run on that user’s computer.

The record

CVE
CVE-2023-23796
Published
Nov 7, 2023
Updated
Apr 28, 2026
Vendor
Muneeb
Product
Form Builder | Create Responsive Contact Forms
Classifications
CWE-1236, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=1.9.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Muneeb · Form Builder | Create Responsive Contact Formsversion=n/a <=1.9.9.0

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.7PatchstackCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1236Improper Neutralization of Formula Elements in a CSV File
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo