The Knock Knock plugin before 1.2.8 for Craft CMS allows IP Whitelist bypass via an X-Forwarded-For HTTP header.
Priority MEDIUM 42CWE-697Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
The Knock Knock plugin before 1.2.8 for Craft CMS allows IP Whitelist bypass via an X-Forwarded-For HTTP header.
Why it matters now
EPSS 0.01355 71st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed verbb/knock-knock (Packagist): 1.2.8
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | verbb/knock-knock (Packagist) | before 1.2.8 | 1.2.8 | Patch available | GHSA-wxvr-qqm7-6h65 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- verbb/knock-knock (Packagist) Vendor— Affected before 1.2.8 Fixed in 1.2.8 Patch available GHSA-wxvr-qqm7-6h65
Remediation
- Fix · GHSA-wxvr-qqm7-6h65 verbb/knock-knock (Packagist) Fixed in 1.2.8 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-13485
- 2026-10-03 Alias added: GHSA-wxvr-qqm7-6h65
References
Advisory 2
More verbb Knock Knock vulnerabilities
- TI-2020-10576 The Knock Knock plugin before 1.2.8 for Craft CMS allows malicious redirection. CVSS 3.1MEDIUM 6.1
Sources
- CVE-2020-13485 · CVE Program
- CVE-2020-13485 · NVD
- FIRST EPSS
- GHSA-wxvr-qqm7-6h65 · GitHub Advisory Database · CC BY 4.0
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