Security readout for executives and security teams
Plain-English summary
CVE-2026-27337 affects the AncoraThemes Chronicle WordPress theme version 1.0 and earlier. It is a local file inclusion flaw that could let an unauthenticated remote attacker cause the site to include unintended local files. The CVSS score is high, but exploitation complexity is rated high. No source provided confirms active exploitation.
Executive priority
Treat this as a high-priority WordPress exposure review, especially for public sites using the Chronicle theme. Do not assume compromise from the CVE alone. Confirm usage first, then update, replace, or remove the vulnerable theme based on vendor guidance.
Technical view
The CVE describes CWE-98: improper control of a filename used in a PHP include/require statement. The affected product is Chronicle - Lifestyle Magazine & Blog WordPress Theme through version 1.0. CVSS 3.1 is 8.1 with AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. Public data does not identify a patched version or detailed prerequisites.
Likely exposure
Exposure is likely limited to WordPress sites that have the Chronicle theme installed at version 1.0 or earlier. The CVE data marks other/default versions as unaffected, but asset owners should verify the exact installed theme name and version.
Exploitation context
The issue is remotely reachable and requires no authentication or user interaction per CVSS. Attack complexity is high, suggesting specific conditions may be needed. The source bundle does not show CISA KEV listing, public exploitation, proof-of-concept code, or in-the-wild attacks.
Researcher notes
Evidence is thin beyond the CVE and Patchstack entry. The record names local file inclusion but uses CWE-98 wording associated with include/require filename control. No exploit details, patch version, vulnerable parameter, or technical advisory content were provided in the source bundle.
Mitigation direction
- Inventory WordPress sites for the Chronicle theme and installed version.
- Check AncoraThemes and Patchstack for patched versions or official remediation guidance.
- Update, replace, or remove the theme if version 1.0 or earlier is present.
- Prioritize backups and recovery readiness for affected public WordPress sites.
Validation and detection
- Confirm whether the Chronicle theme is installed on each WordPress instance.
- Record the installed theme version and compare it to affected versions through 1.0.
- Review Patchstack and CVE records for updated remediation details.
- Check web and application logs for unusual file access patterns.
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-2026-27337 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.