CVE-2020-5240Network attack vector

2FA disablement via unchecked device ownership

Published Mar 13, 2020 · Updated Aug 4, 2024

Improper authorization in Lab Digital wagtail-2fa before 1.4.1 allows remote authenticated users to delete other users' TOTP devices. The device list and delete views accept another user's identifier or device key without verifying ownership or the change-user permission. Any CMS user can disable a target's second factor; account access additionally requires the target's password.

CVSS severity7.6
High
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Lab Digital wagtail-2fa before 1.4.1 allows remote authenticated users to delete other users' TOTP devices. The device list and delete views accept another user's identifier or device key without verifying ownership or the change-user permission. Any CMS user can disable a target's second factor; account access additionally requires the target's password.

The record

CVE
CVE-2020-5240
Published
Mar 13, 2020
Updated
Aug 4, 2024
Vendor
Lab Digital
Product
wagtail-2fa
Classifications
CWE-285, CWE-863, T1556.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 13, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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=< 1.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Lab Digital · wagtail-2faversion=< 1.4.1

Published CVSS scores

7.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N
8.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
5.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-863Incorrect Authorization
T1556.006Multi-Factor Authentication

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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