CVE-2025-6679Network attack vector

Unauthenticated file upload via missing type validation

Published Aug 15, 2025 · Updated Apr 8, 2026

Unrestricted file upload in Bit Apps Bit Form before 2.20.4 allows remote attackers to write arbitrary files through published forms. The Advanced File Upload path stores submitted files without validating their types before placing them on the WordPress server. Exploitation requires Bit Form Pro to be active and a form containing that field to be published; an executable upload can enable code execution.

CVSS severity9.8
Critical
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Bit Apps Bit Form before 2.20.4 allows remote attackers to write arbitrary files through published forms. The Advanced File Upload path stores submitted files without validating their types before placing them on the WordPress server. Exploitation requires Bit Form Pro to be active and a form containing that field to be published; an executable upload can enable code execution.

The record

CVE
CVE-2025-6679
Published
Aug 15, 2025
Updated
Apr 8, 2026
Vendor
Bit Apps
Product
Bit Form
Classifications
CWE-434, T1105
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2025CVE 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 <=2.20.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bit Apps · Bit Formversion=0 <=2.20.3

Published CVSS scores

9.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 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-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer

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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