CVE-2020-13486
Knock Knock plugin Open redirection vulnerability
The Knock Knock plugin before 1.2.8 for Craft CMS allows malicious redirection.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The Knock Knock plugin before 1.2.8 for Craft CMS allows malicious redirection.
- Record
CVE-2020-13486- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
CVE List No score
The Knock Knock plugin before 1.2.8 for Craft CMS allows malicious redirection.
- Record
CVE-2020-13486- Updated
- 2026-11-02
EUVDEUVD-2022-4504 No score
The Knock Knock plugin before 1.2.8 for Craft CMS allows malicious redirection.
- Record
EUVD-2022-4504- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m69r-4h68-xq7j
Knock Knock plugin Open redirection vulnerability
The Knock Knock plugin before 1.2.8 for Craft CMS allows malicious redirection.
- Record
GHSA-m69r-4h68-xq7j- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
OSV
The Knock Knock plugin before 1.2.8 for Craft CMS allows malicious redirection.
- Record
CVE-2020-13486- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-m69r-4h68-xq7j
Knock Knock plugin Open redirection vulnerability
The Knock Knock plugin before 1.2.8 for Craft CMS allows malicious redirection.
- Record
GHSA-m69r-4h68-xq7j- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
verbb/knock-knockPackagist |
before 1.2.8 | 1.2.8 |
verbb/knock-knockPackagist |
before 1.2.8, plus listed versions 1.0.01.0.11.0.21.0.31.1.0 Show 13 moreShow less1.1.11.1.21.1.31.2.01.2.11.2.21.2.31.2.41.2.4.11.2.4.21.2.51.2.61.2.7 |
1.2.8 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-13486 is a medium vulnerability (CVSS 6.1) in Verbb Knock Knock, published May 25, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.68%, the 52nd percentile. Fixed in verbb/knock-knock 1.2.8.