Security readout for executives and security teams
Plain-English summary
CVE-2026-28091 affects the WordPress Coleo theme by ThemeREX through version 1.1.7. A remote, unauthenticated attacker may be able to make the theme include unintended local files. The reported impact is high because successful exploitation could affect confidentiality, integrity, and availability.
Executive priority
Prioritize internet-facing WordPress sites using Coleo because the vulnerability is high severity and unauthenticated. Urgency depends on confirmed theme usage; organizations not using Coleo have no exposure from this CVE.
Technical view
The issue is classified as CWE-98, improper control of filenames in PHP include/require statements, described as PHP Local File Inclusion in Coleo <= 1.1.7. CVSS 3.1 is 8.1 with network access, high attack complexity, no privileges, no user interaction, and high C/I/A impact.
Likely exposure
Public WordPress sites running the ThemeREX Coleo theme at version 1.1.7 or earlier are the relevant exposure. The provided sources do not identify other affected products or a fixed version.
Exploitation context
The CVE record rates exploitation as unauthenticated over the network but high complexity. CISA KEV status is false in the provided bundle, and no cited source states active exploitation.
Researcher notes
Evidence is limited to the CVE data and Patchstack listing. The sources name the weakness class, affected theme range, and CVSS vector, but do not provide a fixed version, exploit details, or confirmed exploitation.
Mitigation direction
- Inventory WordPress sites for the Coleo theme and version.
- Check ThemeREX and Patchstack guidance for a fixed release or vendor workaround.
- Update Coleo if a fixed version is available from the vendor.
- If no fix is available, consider removing or replacing the theme.
Validation and detection
- Confirm whether Coleo is installed on each WordPress site.
- Record the installed Coleo version and compare it to <= 1.1.7.
- Review vendor and Patchstack pages for updated remediation details.
- Monitor web logs for suspicious requests targeting theme file inclusion paths.
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-2026-28091 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.