CVE-2019-16766
2FA bypass in Wagtail through new device path
CVE-2019-16766 is a high vulnerability (CVSS 8.7) in Lab Digital Wagtail-2fa, published November 29, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.46%, the 73rd percentile. Fixed in wagtail-2fa 1.3.0.
When using wagtail-2fa before 1.3.0, if someone gains access to someone's Wagtail login credentials, they can log into the CMS and bypass the 2FA check by changing the URL. They can then add a new device and gain full access to the CMS. This problem has been patched in version 1.3.0.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
2FA bypass in Wagtail through new device path
When using wagtail-2fa before 1.3.0, if someone gains access to someone's Wagtail login credentials, they can log into the CMS and bypass the 2FA check by changing the URL. They can then add a new device and gain full access to the CMS. This problem has been patched in version 1.3.0.
- Record
CVE-2019-16766- CVSS 3.1
- 8.7 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N - Weakness
- CWE-304, CWE-290
- Updated
- 2026-11-02
EUVDEUVD-2019-0155
When using wagtail-2fa before 1.3.0, if someone gains access to someone's Wagtail login credentials, they can log into the CMS and bypass the 2FA check by changing the URL. They can then add a new device and gain full access to the CMS. This problem has been patched in version 1.3.0.
- Record
EUVD-2019-0155- CVSS 3.1
- 8.7 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-89px-ww3j-g2mm
2FA bypass in Wagtail through new device path
2FA bypass through new device path
Impact
If someone gains access to someone's Wagtail login credentials, they can log into the CMS and bypass the 2FA check by changing the URL. They can then add a new device and gain full access to the CMS.
Patches
This problem has been patched in version 1.3.0.
Workarounds
There is no workaround at the moment.
For more information
If you have any questions or comments about this advisory:
- Open an issue in github.com/labd/wagtail-2fa
- Email us at [email protected]
- Record
GHSA-89px-ww3j-g2mm- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N - CVSS 3.1
- 8.7 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N - Weakness
- CWE-290, CWE-304
- Updated
- 2026-11-02
NVD
When using wagtail-2fa before 1.3.0, if someone gains access to someone's Wagtail login credentials, they can log into the CMS and bypass the 2FA check by changing the URL. They can then add a new device and gain full access to the CMS. This problem has been patched in version 1.3.0.
- Record
CVE-2019-16766- CVSS 3.1
- 8.7 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-290, CWE-304
- Updated
- 2026-11-02
OSV
When using wagtail-2fa before 1.3.0, if someone gains access to someone's Wagtail login credentials, they can log into the CMS and bypass the 2FA check by changing the URL. They can then add a new device and gain full access to the CMS. This problem has been patched in version 1.3.0.
- Record
CVE-2019-16766- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-89px-ww3j-g2mm
2FA bypass in Wagtail through new device path
2FA bypass through new device path
Impact
If someone gains access to someone's Wagtail login credentials, they can log into the CMS and bypass the 2FA check by changing the URL. They can then add a new device and gain full access to the CMS.
Patches
This problem has been patched in version 1.3.0.
Workarounds
There is no workaround at the moment.
For more information
If you have any questions or comments about this advisory:
- Open an issue in github.com/labd/wagtail-2fa
- Email us at [email protected]
- Record
GHSA-89px-ww3j-g2mm- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N - CVSS 3.1
- 8.7 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N - Weakness
- CWE-290, CWE-304
- Updated
- 2026-11-02
OSVPYSEC-2019-135 No score
When using wagtail-2fa before 1.3.0, if someone gains access to someone's Wagtail login credentials, they can log into the CMS and bypass the 2FA check by changing the URL. They can then add a new device and gain full access to the CMS. This problem has been patched in version 1.3.0.
- Record
PYSEC-2019-135- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
wagtail-2faPyPI |
before 1.3.0 | 1.3.0 |
wagtail-2faPyPI |
before 1.3.0, plus listed versions 0.0.10.0.20.0.30.1.01.0.01.0.11.1.01.2.0 |
1.3.0 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
github.com/LabD/wagtail-2fa/security/advisories/GHSA-89px-ww3j-g2mm
nvd.nist.gov/vuln/detail/CVE-2019-16766