Security readout for executives and security teams
Plain-English summary
CVE-2026-22423 affects the WordPress SetSail theme through version 1.8. It is a high-severity local file inclusion issue that could let an unauthenticated remote attacker access or affect sensitive server-side files if exploitable. No provided source confirms active exploitation or a fixed version.
Executive priority
Treat this as a high-priority WordPress theme exposure. Prioritize internet-facing sites, marketing sites, and any WordPress instance handling customer data. If SetSail is unused, removal is the fastest risk reduction.
Technical view
The CVE describes improper control of a filename used in PHP include/require logic, classified as CWE-98. The CVSS 3.1 score is 8.1, with network attack vector, no privileges, no user interaction, high attack complexity, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to WordPress sites running the Select-Themes SetSail theme at version 1.8 or earlier. Sites not using this theme are not indicated as affected by the provided sources.
Exploitation context
The vulnerability is remotely reachable and does not require authentication, but the CVSS vector rates attack complexity as high. The source bundle does not include proof of exploitation, public exploit details, or CISA KEV listing.
Researcher notes
The provided data is limited to the CVE metadata and Patchstack reference. It identifies SetSail through version 1.8 as affected, but does not provide vulnerable parameters, exploit prerequisites beyond CVSS, or a confirmed patched release. Avoid assuming exploitability details not present in the sources.
Mitigation direction
- Inventory WordPress sites for the SetSail theme and version.
- Remove or disable SetSail where it is not required.
- Check Select-Themes, Patchstack, and CVE sources for fixed-version guidance.
- Apply vendor-supported updates when available.
- Use existing WAF or virtual patching controls if your provider covers this CVE.
Validation and detection
- Confirm whether SetSail is installed on each WordPress site.
- Record the installed SetSail version and flag versions 1.8 or earlier.
- Review Patchstack and vendor advisories for remediation status.
- Check web logs for unusual file-access patterns, without attempting exploitation.
- Document compensating controls for any site awaiting a fix.
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.
CWE-98: Exact CWE lookup
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Open ATT&CK lookupCVE-2026-22423 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
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
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.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.