Security readout for executives and security teams
Plain-English summary
WordPress sites running MasterStudy LMS 3.0.8 or earlier may let any logged-in user, including subscribers, view plugin order records. Those records can expose personal data such as email addresses and usernames. The main business risk is confidentiality and privacy exposure, not site takeover.
Executive priority
Prioritize this for education, membership, and course-commerce sites because customer order data may be exposed to ordinary users. It is not described as remote unauthenticated compromise, but it can create privacy, trust, and notification concerns.
Technical view
CVE-2023-35093 is a CWE-862 broken access control flaw in StylemixThemes MasterStudy LMS. The CVSS 3.1 score is 6.5, with network access, low complexity, low privileges, no user interaction, and high confidentiality impact. Sources describe unauthorized access to LMS Orders data by authenticated users.
Likely exposure
Exposure is likely on WordPress sites using MasterStudy LMS 3.0.8 or earlier, especially sites allowing public registration, student accounts, or subscriber accounts. The bundle does not name a fixed version, so version verification against vendor guidance is required.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Abuse would require a logged-in account, but subscriber-level access may be common on online course sites. Treat public registration as a meaningful risk amplifier.
Researcher notes
Evidence is limited to the CVE description and Patchstack vulnerability entry. The affected range is described as 3.0.8 or earlier in the bundle, while the Patchstack URL title references 3.0.7. No exploit code, active exploitation, or fixed release details are provided here.
Mitigation direction
- Inventory WordPress sites using the MasterStudy LMS plugin.
- Check vendor and Patchstack guidance for the fixed version.
- Upgrade or disable the plugin if a safe fixed release is available.
- Limit untrusted account registration until remediation is confirmed.
- Review exposed order data for possible privacy follow-up.
Validation and detection
- Confirm installed MasterStudy LMS version on each WordPress site.
- Check whether public or subscriber account registration is enabled.
- Verify low-privileged users cannot access LMS Orders data.
- Review logs for unusual authenticated access to order-related pages.
- Document remediation status and remaining affected sites.
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-2023-35093 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:H/I:N/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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.