Security readout for executives and security teams
CVE-2017-9420 is an XSS flaw in the WordPress Spiffy Calendar plugin before 3.3.0. A remote attacker could inject JavaScript through the yr parameter. Business risk is mainly browser-side compromise of site users or administrators who interact with affected calendar pages. Exposure is limited to WordPress sites running the Spiffy Calendar plugin below version 3.3.0. Public calendar pages may increase likelihood of attacker reach. The provided affected-product metadata is incomplete, so confirm through WordPress inventory rather than CPE matching alone. Handle during normal vulnerability remediation unless the plugin is present on business-critical or administrator-heavy WordPress sites. Escalate if vulnerable versions remain internet-facing or the plugin is no longer maintainable. Mitigation focus: Upgrade Spiffy Calendar to version 3.3.0 or later where deployed.; Disable or remove the plugin if an update cannot be verified.; Check vendor and WordPress plugin guidance for current maintenance status..
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-2017-9420 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://wpvulndb.com/vulnerabilities/8842CVE 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.
