Security readout for executives and security teams
Plain-English summary
CVE-2026-28053 is a high-severity file inclusion flaw in the WordPress Miller theme by ThemeREX, package christine-miller, affecting versions through 1.3.3. A remote unauthenticated attacker may be able to cause the site to include local files, risking sensitive data exposure or broader site compromise. Public sources do not state active exploitation.
Executive priority
Treat this as a near-term priority for WordPress asset owners using the Miller theme. The potential impact is high, but evidence provided does not show active exploitation. Focus first on confirming exposure, removing unnecessary installations, and following vendor or Patchstack remediation guidance.
Technical view
The CVE describes improper control of a filename used in a PHP include/require statement, mapped to CWE-98. The CVSS 3.1 score is 8.1: network exploitable, high attack complexity, no privileges or user interaction, with high confidentiality, integrity, and availability impact. The description identifies PHP Local File Inclusion in Miller <= 1.3.3.
Likely exposure
Exposure is likely limited to WordPress sites with the ThemeREX Miller theme, package christine-miller, installed in versions <= 1.3.3. The source bundle does not identify specific vulnerable files, configuration conditions, or whether inactive installed themes are exploitable.
Exploitation context
The CVSS vector indicates remote, unauthenticated exploitation is possible but high complexity. The CVE and Patchstack listing identify the issue publicly, but the provided sources do not confirm exploitation in the wild, exploit availability, or CISA KEV listing.
Researcher notes
Evidence is sparse. The CVE record states LFI, while the CWE label references PHP remote file inclusion terminology. The affected data in the bundle includes a confusing versions entry, but the description clearly states through <= 1.3.3. No exploit details, vulnerable parameter, or fixed version are provided in the sources.
Mitigation direction
- Inventory WordPress sites for the Miller/christine-miller theme and version.
- If version is <= 1.3.3, check ThemeREX and Patchstack for updated guidance.
- Remove the theme where it is not required.
- Restrict administrative access and keep WordPress, themes, and plugins current.
- Monitor web logs for unusual file-include or path traversal patterns.
Validation and detection
- Confirm whether Miller/christine-miller is installed on each WordPress instance.
- Record installed theme version and compare it to <= 1.3.3.
- Review vendor and Patchstack pages for patched version or mitigation updates.
- Check whether suspicious requests targeted the theme before remediation.
- Verify the theme is updated, removed, or otherwise addressed per vendor guidance.
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-2026-28053 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.