What is CVE-2026-82023?

CVE-2026-82023 is a medium-severity vulnerability in Thimpress Learnpress, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-09-03.

How severe is CVE-2026-82023?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Thimpress Learnpress

CVE-2026-82023

LearnPress WordPress Plugin before 4.4.6 contains a broken object-level authorization vulnerability that allows authenticated attackers with the Instructor role to add answers to quiz questions owned by other instructors by exploiting a missing ownership check on the question answer insert path. Attackers can supply arbitrary question identifiers during answer insertion, bypassing instructor-boundary restrictions to persistently modify quiz content across courses they do not own.

Vulnerability class: Broken Access Control

Published 2026-09-03 · last modified 2026-09-08.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.7th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Thimpress Learnpress

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

Release Notes (release-notes)
www.vulncheck.com/advisories/learnpress-wordpress-plugin-broken-object-level-au… (third-party-advisory)

Frequently asked questions

What is CVE-2026-82023?: CVE-2026-82023 is a medium-severity vulnerability in Thimpress Learnpress, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-09-03.
How severe is CVE-2026-82023?: Medium severity. CVSS v3 base score is 4.3 out of 10.