Security readout for executives and security teams
Plain-English summary
CVE-2026-28086 affects the ThemeREX Run Gran WordPress theme through version 2.0. It is a local file inclusion issue, meaning a remote attacker may be able to make the site load unintended server files. The published severity is high, but public details are limited and no active exploitation is cited.
Executive priority
Treat as a high-priority WordPress exposure for sites using this specific theme. Prioritize confirmation and remediation, but avoid assuming compromise without supporting evidence. Business urgency is highest for public-facing sites handling sensitive data or supporting revenue operations.
Technical view
The CVE describes improper filename control in a PHP include/require statement, mapped to CWE-98. Affected software is ThemeREX Run Gran theme through <= 2.0. CVSS 3.1 is 8.1: network-accessible, high complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to WordPress sites with the ThemeREX Run Gran theme installed at version 2.0 or earlier, where the vulnerable code is reachable. The source bundle does not identify affected hosting platforms, configurations, or whether inactive installations are exploitable.
Exploitation context
The CVE is not listed as KEV in the provided data, and the cited sources do not state active exploitation. The CVSS vector indicates remote exploitation is possible without credentials or user interaction, but with high attack complexity.
Researcher notes
Public technical detail is sparse. The CVE and Patchstack entry identify LFI in Run Gran <= 2.0 with CVSS 8.1. No exploit proof, patched version, or workaround is included in the provided sources. Further validation should rely on vendor or Patchstack updates.
Mitigation direction
- Identify all WordPress sites using the ThemeREX Run Gran theme.
- Check ThemeREX and Patchstack guidance for a fixed version or vendor workaround.
- Update the theme if a vendor-fixed release is available.
- If no fix is available, remove or replace the theme where feasible.
- Prioritize internet-facing and business-critical WordPress sites first.
Validation and detection
- Inventory installed WordPress themes and confirm Run Gran versions.
- Flag Run Gran installations at version 2.0 or earlier.
- Confirm whether the theme is active and whether its vulnerable code is reachable.
- Review Patchstack and CVE records for updated remediation information.
- Check web logs for unusual requests targeting theme file-loading behavior.
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-2026-28086 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.