Security readout for executives and security teams
Plain-English summary
This issue affects WordPress sites using Tutor LMS up to version 3.9.4. A logged-in low-privilege user, such as a subscriber, may delete site attachments without proper authorization. Business impact is mainly content disruption, broken course materials, and loss of uploaded media rather than data theft.
Executive priority
Treat as a medium-priority remediation for affected learning sites. Prioritize internet-facing sites with open enrollment or many subscriber-level users, because successful abuse could disrupt course content and user experience.
Technical view
CVE-2026-0548 is a missing authorization check (CWE-862) in Tutor LMS’s `delete_existing_user_photo` function. The CVSS 3.1 score is 5.4. Attackers need authenticated access with subscriber-level privileges or higher. The reported impact is integrity and availability loss through unauthorized attachment deletion.
Likely exposure
Exposure is most relevant for WordPress sites running Tutor LMS version 3.9.4 or earlier, especially sites allowing public registration, student accounts, or many low-privilege users.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires a valid authenticated account, reducing reach but not eliminating risk on open-registration learning sites.
Researcher notes
Evidence identifies the vulnerable function and missing capability check, but public sources provided do not include exploit telemetry. The WordPress Trac reference compares Tutor LMS 3.9.4 and 3.9.5, supporting investigation of that update path without assuming details beyond the cited change.
Mitigation direction
- Identify WordPress sites using Tutor LMS.
- Check whether Tutor LMS is version 3.9.4 or earlier.
- Update Tutor LMS beyond the affected version after confirming vendor guidance.
- Restrict or review public user registration where practical.
- Back up media uploads and course attachments before remediation.
Validation and detection
- Inventory Tutor LMS versions across WordPress sites.
- Confirm whether low-privilege accounts exist or public registration is enabled.
- Review media library for unexpected attachment deletions.
- Check plugin change history between 3.9.4 and 3.9.5.
- Monitor Wordfence and vendor advisories for updated guidance.
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-2026-0548 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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.