Security readout for executives and security teams
Plain-English summary
CVE-2026-25393 is a medium-severity access control flaw in the WordPress Hello FSE theme through version 1.0.6. A logged-in user may be able to perform actions that should require higher authorization. Business urgency is moderate and depends on whether affected sites allow user accounts or contributor-style access.
Executive priority
Treat as a moderate-priority WordPress hygiene issue. It is not described as actively exploited, but sites with public logins or many contributors should be reviewed promptly because the flaw may allow unauthorized changes.
Technical view
The issue is CWE-862 Missing Authorization in sparklewpthemes Hello FSE, package hello-fse, affecting versions up to 1.0.6. CVSS 3.1 is 4.3: network reachable, low complexity, low privileges required, no user interaction, low integrity impact, no confidentiality or availability impact listed.
Likely exposure
Exposure is limited to WordPress sites using the Hello FSE theme at version 1.0.6 or earlier, especially where untrusted or many users can authenticate. Sites without this theme are not indicated as affected by the provided sources.
Exploitation context
The CVE is not listed as CISA KEV in the provided data, and no cited source states active exploitation. The CVSS vector indicates exploitation requires a logged-in user but not user interaction, with impact limited to integrity.
Researcher notes
The source bundle does not name a fixed version, workaround, or detailed vulnerable function. Avoid assuming exploitability beyond the CVSS and CWE data. Further analysis should focus on authorization checks in Hello FSE functionality exposed to authenticated non-admin users.
Mitigation direction
- Identify WordPress sites using the Hello FSE theme.
- Prioritize sites with public registration or many low-privileged users.
- Check Patchstack and the theme vendor for an updated fixed version or official workaround.
- Restrict unnecessary WordPress user accounts and permissions until guidance is confirmed.
- Monitor for unexpected theme, content, or configuration changes.
Validation and detection
- Inventory installed WordPress themes and record Hello FSE versions.
- Flag Hello FSE versions 1.0.6 and earlier for remediation review.
- Confirm whether affected sites allow low-privileged authenticated users.
- Review admin activity logs for unauthorized changes by non-admin users.
- Recheck vendor and Patchstack advisories for fixed-version 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-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2026-25393 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
- 4.3 (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:N
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:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.