The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.0.8 via the 'student_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to disclose the email address and Tutor profile phone number of arbitrary WordPress users, including Administrators, by iterating over user IDs via the student_id parameter.
CVE-2026-89333
MEDIUMPre-NVD 6.56.5
EchelonGraph scoreLOW confidence
This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 6.5Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.5
- EG Score
- 6.5(low)
- EG Risk
- 34(Track)EG Risk 34/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity65% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
September 19, 2026
Last Modified
September 19, 2026
References (7)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/classes/Template.php#L503
- security@wordfencehttps://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/classes/Utils.php#L2841
- security@wordfencehttps://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profile.php#L132
- security@wordfencehttps://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profile.php#L137
- security@wordfencehttps://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profile.php#L21
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?reponame=&old=3700174%40tutor&new=3700174%40tutor
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/244051ef-5357-4b16-b690-46c8fea56847?source=cve
Vendor Advisories for CVE-2026-89333(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 3× in last 7d / 3× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-19 03:29 UTCEG score recompute
- 2026-09-19 02:36 UTCEG score recompute
- 2026-09-19 02:35 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-639
- CVE-2018-25270EG 9.8CRITICAL
- CVE-2017-20223EG 9.8CRITICAL
- CVE-2019-25487EG 9.8EPSS p94CRITICAL
- CVE-2019-25235EG 9.8CRITICAL
- CVE-2019-15310EG 9.8EPSS p95CRITICAL
- CVE-2019-15913EG 9.8CRITICAL
- CVE-2019-16340EG 9.8EPSS p97CRITICAL
- CVE-2019-13360EG 9.8EPSS p98CRITICAL
- CVE-2019-12866EG 9.8CRITICAL
- CVE-2019-9756EG 9.8CRITICAL
Frequently asked(4)
What is CVE-2026-89333?
CVE-2026-89333 is a medium vulnerability published on September 19, 2026. The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.0.8 via the 'studentid' parameter due to missing validation on a user controlled key. This makes it possible for authenticated…
When was CVE-2026-89333 disclosed?
CVE-2026-89333 was first published in the National Vulnerability Database on September 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-89333?
CVE-2026-89333 has a CVSS v3 base score of 6.5 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-89333?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-89333, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-89333
Is Your Infrastructure Affected by CVE-2026-89333?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.