Security readout for executives and security teams
Plain-English summary
CVE-2026-22398 affects the WordPress Fleur theme through version 2.0. It is an authorization weakness where a logged-in user may influence object access in ways the site did not intend. The expected impact is limited integrity and availability, not confirmed data theft. No public source provided indicates active exploitation.
Executive priority
Address during the next normal vulnerability remediation cycle, sooner for public sites with user registration or many low-privilege accounts. The rating is moderate because an attacker needs an account and expected impact is limited, but WordPress theme issues can still affect site trust and operations.
Technical view
The issue is classified as CWE-639, an insecure direct object reference caused by user-controlled keys and incorrectly configured access control. CVSS 3.1 is 5.4, network-exploitable, low complexity, requiring low privileges and no user interaction. The CVE description names Mikado-Themes Fleur through <=2.0 as affected, though the structured affected data is sparse.
Likely exposure
Exposure is most relevant to WordPress sites running the Fleur theme version 2.0 or earlier. Because exploitation requires low privileges, sites allowing user registration, contributors, subscribers, or other non-admin accounts may have higher practical risk.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle, and no cited source states active exploitation. Public details are limited to the vulnerability class, affected theme, and CVSS vector. Treat this as a patch-management and access-control risk rather than an emergency exploitation event.
Researcher notes
Available sources do not provide endpoint names, proof-of-concept details, or a named fixed version. Avoid assuming exploitability beyond the CVSS vector and IDOR/CWE-639 classification. The CVE affected-version metadata appears less clear than the narrative description, so validate against vendor or Patchstack updates.
Mitigation direction
- Inventory WordPress sites for the Fleur theme and version in use.
- Check Patchstack and the theme vendor for fixed versions or official guidance.
- Update or replace the theme if a trusted fixed release is available.
- Restrict unnecessary low-privilege user accounts on affected sites.
- Back up the site before theme updates or replacement.
Validation and detection
- Confirm whether the active or installed theme is Fleur.
- Record the Fleur version and compare it to <=2.0 exposure.
- Review WordPress user roles for unnecessary low-privilege access.
- Check web logs for unusual authenticated requests to theme-related functionality.
- Monitor Patchstack and CVE records for updated 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-639: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-22398 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
- Medium
- CVSS
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
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:L/PR:L/UI:N/S:U/C:N/I:L/A:L2.82.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
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.
Authorization Bypass Through User-Controlled Key
Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.