Security readout for executives and security teams
Plain-English summary
CVE-2026-28092 affects the WordPress Sounder theme by ThemeREX through version 1.3.11. A remote unauthenticated attacker may be able to include local files through unsafe PHP file inclusion handling. The CVSS score is high, but attack complexity is rated high. No active exploitation is indicated in the provided sources.
Executive priority
Treat as a high-priority WordPress exposure if your organization uses the Sounder theme. The business urgency is highest for public-facing sites, because compromise could affect confidentiality, integrity, and availability. If the theme is not present, no action is indicated beyond documentation.
Technical view
The issue is classified as CWE-98: improper control of filename in a PHP include/require statement, resulting in local file inclusion in the Sounder WordPress theme. The CVSS v3.1 vector is AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, score 8.1. Sources identify affected versions as Sounder <= 1.3.11.
Likely exposure
Exposure is limited to WordPress sites using the ThemeREX Sounder theme at version 1.3.11 or earlier. Sites not using this theme are not indicated as affected by the provided sources.
Exploitation context
The vulnerability is network-accessible and does not require authentication or user interaction, but the CVSS vector rates attack complexity as high. The source bundle does not report public exploitation, weaponized exploit availability, or CISA KEV listing.
Researcher notes
Evidence is limited to the CVE record and Patchstack database reference. The affected range is described as through <= 1.3.11, while the structured affected entry is sparse. No patch version, exploit status, or detailed prerequisites are provided in the source bundle.
Mitigation direction
- Inventory WordPress sites for the ThemeREX Sounder theme.
- Identify Sounder installations at version 1.3.11 or earlier.
- Check ThemeREX and Patchstack guidance for a fixed version or vendor mitigation.
- If no fix is available, consider disabling or replacing the theme.
- Prioritize sites exposed to the public internet.
Validation and detection
- Confirm whether the Sounder theme is installed on each WordPress site.
- Record the installed Sounder theme version.
- Compare installed versions against the affected range: through 1.3.11.
- Review web application logs for suspicious file inclusion errors or unusual theme requests.
- Monitor vendor and vulnerability database updates for remediation details.
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-2026-28092 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.