Security readout for executives and security teams
Plain-English summary
CVE-2026-28121 affects the Anderson WordPress theme by AncoraThemes through version 1.4.2. A remote attacker may be able to make the site include local files improperly, risking sensitive data exposure, site tampering, or disruption. Sources rate it high severity, but do not show active exploitation.
Executive priority
Treat this as a high-priority WordPress exposure where the Anderson theme is present on public sites. The potential impact is serious, but available sources do not confirm exploitation in the wild. Prioritize inventory and vendor-guided remediation over emergency assumptions.
Technical view
The CVE describes improper control of a filename used in PHP include/require logic, mapped to CWE-98. The description calls the impact PHP Local File Inclusion. CVSS 3.1 is 8.1: network exploitable, no privileges or user interaction, high confidentiality, integrity, and availability impact, with high attack complexity.
Likely exposure
Public WordPress sites with the Anderson theme package andersonclinic installed at version 1.4.2 or earlier are the relevant exposure. The source data does not clarify whether inactive installed themes are exploitable, so validate both installed and active theme inventory.
Exploitation context
No provided source states active exploitation, and the bundle marks CISA KEV as false. The CVSS vector indicates unauthenticated network reachability, but high attack complexity. No exploit details, endpoint, or proof-of-concept information is included in the provided sources.
Researcher notes
The source bundle has limited technical detail. It labels CWE-98 and references remote file inclusion terminology, while the description states Local File Inclusion. The affected array also lists version “0” while the narrative says through 1.4.2. Validate against the CVE record and Patchstack before final scoping.
Mitigation direction
- Inventory WordPress sites for the Anderson andersonclinic theme.
- Prioritize sites running Anderson version 1.4.2 or earlier.
- Check AncoraThemes and Patchstack for an official fixed version or guidance.
- If no fix is available, consider replacing or removing the theme after testing.
- Increase monitoring for suspicious file access errors or unexpected PHP include behavior.
Validation and detection
- Confirm the installed Anderson theme version on each WordPress instance.
- Verify whether Anderson is active, installed, or present in backups.
- Compare findings against CVE and Patchstack records for current remediation status.
- Review web and PHP logs for unusual local file access indicators.
- Recheck KEV and vendor advisories before closing remediation tickets.
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-2026-28121 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.