Auth bypass in Erudika Scoold
CVE-2026-39354
Scoold is a Q&A and a knowledge sharing platform for teams. Prior to 1.66.2, an authenticated authorization flaw in Scoold allows any logged-in, low-privilege user to overwrite another user's existing question by supplying that question's public ID as the postId parameter to POST /questions/ask. Because question IDs are exposed in normal question URLs, a low-privilege attacker can take a victim question ID from a public page and cause attacker-controlled content to be stored under that existing question object. This causes direct integrity loss of user-generated content and corrupts the integrity of the existing discussion thread. This vulnerability is fixed in 1.66.2.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (11.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.002 · change: -0.001
Affected products
- Erudika Scoold — versions < 1.66.2
Weakness classification (CWE)
References
- github.com/Erudika/scoold/security/advisories/GHSA-768r-cv9p-wrcm (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-39354?
- CVE-2026-39354 is a medium-severity vulnerability in Erudika Scoold, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-04-07.
- How severe is CVE-2026-39354?
- Medium severity. CVSS v3 base score is 6.5 out of 10.