Security readout for executives and security teams
Plain-English summary
CVE-2026-28017 affects the ThemeREX Green Thumb WordPress theme through version 1.1.12. It may let an unauthenticated remote attacker make the site include local files, risking data exposure, code impact, or denial of service. Public sources rate it high severity, but do not cite active exploitation.
Executive priority
Treat as high priority if your organization runs WordPress with this theme. The business risk is potential compromise of affected public websites. Start with inventory and vendor guidance because the provided sources do not name a patch or workaround.
Technical view
The issue is CWE-98: improper control of a filename used in PHP include/require logic. The CVE describes PHP Local File Inclusion in greenthumb <=1.1.12. CVSS 3.1 is 8.1 with AV:N/AC:H/PR:N/UI:N and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites using the ThemeREX Green Thumb theme through version 1.1.12. Sites not using this theme are not indicated as affected by the provided sources.
Exploitation context
The record indicates unauthenticated network reachability and no user interaction, but high attack complexity. The source bundle does not include exploit details, a proof of concept, or KEV listing. Active exploitation is not supported by the provided evidence.
Researcher notes
Evidence is limited to the CVE and Patchstack database entry. The source uses CWE-98 wording associated with PHP file inclusion while describing local file inclusion. No exploit, patch version, or operational indicators are provided in the bundle.
Mitigation direction
- Inventory WordPress sites for the ThemeREX Green Thumb theme.
- Identify any installations at version 1.1.12 or earlier.
- Check ThemeREX and Patchstack guidance for a fixed version or official workaround.
- Prioritize public-facing affected WordPress sites for remediation tracking.
- Monitor security logs for suspicious theme-related file access patterns.
Validation and detection
- Confirm whether the greenthumb theme is installed on each WordPress site.
- Record the installed Green Thumb theme version.
- Compare installed versions against the affected range: through 1.1.12.
- Review vendor and Patchstack pages for updated remediation information.
- Document sites where the theme is absent as not exposed to this CVE.
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
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-28017 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.