CVE-2024-1640Network attack vector

Unauthenticated form-submission alteration via unchecked entry identifier

Published Mar 13, 2024 · Updated Apr 8, 2026

IDOR in Bit Apps Bit Form 2.10.1 and earlier allows remote attackers to alter stored form submissions through a public AJAX action. The bitforms_update_form_entry handler accepts an attacker-supplied entry identifier and updates that record without verifying the user or entry ownership. No WordPress account is required; a reachable form with stored submissions exposes existing response data to unauthorized modification.

CVSS severity5.3
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in Bit Apps Bit Form 2.10.1 and earlier allows remote attackers to alter stored form submissions through a public AJAX action. The bitforms_update_form_entry handler accepts an attacker-supplied entry identifier and updates that record without verifying the user or entry ownership. No WordPress account is required; a reachable form with stored submissions exposes existing response data to unauthorized modification.

The record

CVE
CVE-2024-1640
Published
Mar 13, 2024
Updated
Apr 8, 2026
Vendor
Bit Apps
Product
Bit Form
Classifications
CWE-639, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <=2.10.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bit Apps · Bit Formversion=0 <=2.10.1

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1565.001Stored Data Manipulation

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

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Your stack

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