CVE-2026-42702 Themeum CVE debrief

Who should care

Defenders responsible for Tutor LMS plugin deployments should assess exposure and prioritize remediation of vulnerable plugin versions.

Why it matters

CVE-2026-42702 is a high-severity unauthenticated Cross Site Scripting (XSS) vulnerability in Tutor LMS plugin versions up to 4.1.0, requiring defenders to verify exposure and prioritize remediation.

• Defenders should verify exposure of Tutor LMS plugin versions up to 4.1.0 to prevent potential XSS attacks.
• Successful exploitation could lead to unauthorized script execution, requiring defenders to prioritize remediation.
• Defenders should assess the risk of unauthenticated XSS attacks and prioritize remediation of vulnerable plugin versions.

Technical summary

The vulnerability is an unauthenticated Cross Site Scripting (XSS) in Tutor LMS plugin versions up to 4.1.0, with a CVSS score of 7.1 and a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Defensive priority

Defenders should prioritize verifying exposure of Tutor LMS plugin versions up to 4.1.0 and assessing the risk of unauthenticated XSS attacks.

Recommended defensive actions

• Verify exposure of Tutor LMS plugin versions up to 4.1.0
• Assess the risk of unauthenticated XSS attacks
• Prioritize remediation of vulnerable plugin versions

Evidence notes

The vulnerability is described as an unauthenticated Cross Site Scripting (XSS) in Tutor LMS plugin versions up to 4.1.0. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.