Security readout for executives and security teams
Plain-English summary
CVE-2026-27996 affects the WordPress Lingvico theme by ThemeREX through version 1.0.14. It may let an unauthenticated remote attacker include local files through unsafe PHP include handling. The reported impact is high for confidentiality, integrity, and availability. There is no KEV listing in the provided sources, so active exploitation is not confirmed here.
Executive priority
Treat this as a high-priority WordPress exposure review. The risk is serious for affected public sites, but urgency should be based on whether Lingvico is installed and whether vendor remediation is available. No confirmed active exploitation is cited in the provided sources.
Technical view
The issue is classified as CWE-98: improper control of filename for PHP include/require. The CVSS 3.1 score is 8.1 with network attack vector, no privileges, no user interaction, high complexity, and high CIA impact. The public record identifies Lingvico versions through 1.0.14 as affected.
Likely exposure
Exposure is limited to WordPress sites with the ThemeREX Lingvico theme installed at version 1.0.14 or earlier. The source bundle does not identify affected plugins, other ThemeREX products, or specific hosting configurations.
Exploitation context
The CVSS vector indicates remote, unauthenticated exploitation is possible but high complexity. The provided sources do not confirm public exploit availability or active exploitation. This is not listed as CISA KEV in the supplied data.
Researcher notes
Evidence is limited to the CVE metadata and Patchstack vulnerability entry. The affected range is stated as Lingvico through 1.0.14. The bundle does not provide vulnerable parameters, proof-of-concept details, exploit telemetry, or a named fixed release.
Mitigation direction
- Inventory WordPress sites for the Lingvico theme and record installed versions.
- Prioritize sites running Lingvico version 1.0.14 or earlier.
- Check ThemeREX, Patchstack, and CVE guidance for an official fixed version or mitigation.
- If no fix is available, consider disabling or replacing the theme where operationally feasible.
- Back up sites before theme changes and test changes in staging when possible.
Validation and detection
- Confirm whether the active or installed theme package is Lingvico.
- Verify the installed Lingvico version is greater than 1.0.14, if a fixed version exists.
- Review web logs for unusual file-include style requests without reproducing exploit behavior.
- Confirm compensating controls, such as WAF rules, are enabled where available.
- Track the CVE and Patchstack entry for updates to affected versions or remediation.
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-2026-27996 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.