Security readout for executives and security teams
Plain-English summary
CVE-2026-25406 is a high-severity authentication bypass in the WordPress Tutor LMS Pro plugin through version 3.9.4. A successful attack could let an unauthenticated remote actor abuse an alternate authentication path, potentially affecting confidentiality, integrity, and availability of the site’s LMS functions.
Executive priority
Treat this as a near-term remediation item for any public WordPress site using Tutor LMS Pro. The potential business impact is high, but current sources do not confirm active exploitation.
Technical view
The issue is CWE-288, Authentication Bypass Using an Alternate Path or Channel, in Themeum Tutor LMS Pro package tutor-pro. The CVSS 3.1 score is 8.1: network exploitable, no privileges, no user interaction, high complexity, and high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely on internet-facing WordPress sites using Tutor LMS Pro version 3.9.4 or earlier. Sites not using the Pro plugin, or using versions confirmed unaffected by vendor guidance, are less likely exposed.
Exploitation context
The CVE record reports remote unauthenticated attack conditions but high attack complexity. The provided sources do not show CISA KEV listing or confirm active exploitation. Public technical detail is limited, so avoid assuming exploit availability.
Researcher notes
Public sources identify the vulnerability class and affected version range but do not provide detailed root cause, exploit conditions, or a named fixed version in the provided bundle. Further validation should rely on vendor advisories, Patchstack updates, and safe version inventory.
Mitigation direction
- Inventory WordPress sites for Tutor LMS Pro and record installed versions.
- Prioritize sites running Tutor LMS Pro 3.9.4 or earlier.
- Check Themeum and Patchstack guidance for a fixed version or official mitigation.
- Apply the vendor-recommended update when available and test LMS functionality.
- If no fix is available, consider disabling the plugin on high-risk sites.
Validation and detection
- Confirm whether Tutor LMS Pro is installed on each WordPress site.
- Verify the plugin version against the affected range: through 3.9.4.
- Review administrator and LMS access logs for unusual authentication or role changes.
- Check Patchstack and CVE records for updated remediation details.
- Document compensating controls if the plugin cannot be updated immediately.
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-288: 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-25406 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.
Authentication Bypass Using an Alternate Path or Channel
Authentication Bypass Using an Alternate Path or Channel represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.