Security readout for executives and security teams
Plain-English summary
CVE-2026-28087 affects the WordPress Filmax theme by ThemeREX through version 1.1.11. It may let an unauthenticated remote attacker include local files through improper PHP include/require filename handling. Successful exploitation could expose sensitive data, alter site behavior, or disrupt availability. No cited source states active exploitation.
Executive priority
Prioritize identification and remediation for public WordPress sites using Filmax. The vulnerability is high impact and remotely reachable, but current sources do not confirm active exploitation or name a specific fixed version.
Technical view
The CVE describes CWE-98 improper control of filename in PHP include/require logic, characterized as PHP Local File Inclusion in Filmax <=1.1.11. CVSS 3.1 is 8.1: network-reachable, no privileges, no user interaction, high attack complexity, with high confidentiality, integrity, and availability impact.
Likely exposure
Public WordPress sites running the ThemeREX Filmax theme version 1.1.11 or earlier are the likely exposure. Sites not using this theme are not indicated as affected by the provided sources.
Exploitation context
The CVSS vector indicates unauthenticated network exploitation is possible, but attack complexity is high. The source bundle does not cite public exploitation, and KEV status is false. Treat internet-facing affected sites as priority review targets, not as confirmed compromised systems.
Researcher notes
Evidence is limited to the CVE record and Patchstack reference. The record labels CWE-98 and describes local file inclusion, while the CWE title references remote file inclusion. No exploit details, patch version, or exploitation-in-the-wild evidence are provided in the bundle.
Mitigation direction
- Inventory WordPress sites for the Filmax theme and version.
- If Filmax is <=1.1.11, check ThemeREX and Patchstack guidance immediately.
- Update or replace the theme if vendor guidance provides a safe version.
- Restrict administrative access and remove unused themes where operationally possible.
- Monitor web logs for suspicious file-include-related requests.
Validation and detection
- Confirm whether the Filmax theme is installed on each WordPress site.
- Record the installed Filmax version and compare it to <=1.1.11.
- Review vendor or Patchstack advisory status for available fixes.
- Check logs for unusual requests targeting theme PHP files or file parameters.
- Verify backups and recovery procedures for affected WordPress sites.
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-2026-28087 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.