Security readout for executives and security teams
Plain-English summary
Craft CMS sites using the Knock Knock plugin before version 1.2.8 may allow malicious redirection. This can mislead users by sending them to attacker-controlled destinations, creating phishing and brand-trust risk. The public record provides limited technical detail and no severity score.
Executive priority
Treat as a targeted web risk, not a confirmed emergency. Prioritize remediation where Craft CMS sites are public-facing or handle customer authentication, because malicious redirects can damage trust and support phishing.
Technical view
CVE-2020-13486 affects the verbb Knock Knock plugin for Craft CMS before 1.2.8. The stated issue is malicious redirection. Public sources do not provide CVSS, CWE, vulnerable parameter details, or validated exploit conditions, so exposure assessment depends on confirming plugin presence and version.
Likely exposure
Exposure is likely limited to Craft CMS deployments that installed Knock Knock versions earlier than 1.2.8. The source bundle provides no CPEs or broader affected product list.
Exploitation context
The CVE is not listed as KEV in the provided bundle. The cited sources do not confirm active exploitation, public exploit availability, or exploitation prerequisites.
Researcher notes
The public record is sparse: no CVSS, CWE, root cause, or parameter-level detail is provided. Analysis should stay version-based unless vendor advisories or code review provide more evidence.
Mitigation direction
- Upgrade Knock Knock to version 1.2.8 or later.
- Review the vendor changelog for fixed-version guidance.
- Confirm no unsupported fork or pinned dependency keeps the vulnerable plugin active.
- Apply normal phishing-risk monitoring for affected Craft CMS properties.
Validation and detection
- Inventory Craft CMS sites for the Knock Knock plugin.
- Check installed Knock Knock versions against 1.2.8.
- Review site redirect behavior for unexpected external destinations.
- Inspect recent web logs for unusual redirect-related traffic patterns.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2020-13486 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/verbb/knock-knock/blob/craft-3/CHANGELOG.mdCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.