How severe is CVE-2018-16971?

CVE-2018-16971 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2018-16971 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16971?

CVE-2018-16971 affects Wisetail Learning Management System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16971?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-16971 published?

CVE-2018-16971 was published on 2018-09-12 and last updated on 2026-06-17.

CVE-2018-16971

CVE-2018-16971 is a medium-severity vulnerability in Wisetail Learning Management System with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Wisetail Learning Management System
Published: 2018-09-12
Last modified: 2026-06-17

Description

Wisetail Learning Ecosystem (LE) through v4.11.6 allows insecure direct object reference (IDOR) attacks to access non-purchased course contents (quiz / test) via a modified id parameter.

Frequently asked questions

What is CVE-2018-16971?: Wisetail Learning Ecosystem (LE) through v4.11.6 allows insecure direct object reference (IDOR) attacks to access non-purchased course contents (quiz / test) via a modified id parameter.
How severe is CVE-2018-16971?: CVE-2018-16971 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2018-16971 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16971?: CVE-2018-16971 affects Wisetail Learning Management System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16971?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-16971 published?: CVE-2018-16971 was published on 2018-09-12 and last updated on 2026-06-17.

References

https://blog.ziaurrashid.com/wisetail-learning-ecosystem-multiple-idor-vunlerability/

Affected products (1)

cpe:2.3:a:wisetail:learning_management_system:*:*:*:*:*:*:*:*

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