CVE-2026-39354: Scoold has an Authenticated Arbitrary Question Overwrite via Client-Controlled postId in POST /questions/ask
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Scooldto a version that resolves this vulnerability.Fixed in 1.66.2
Event History
Frequently Asked Questions
What is the severity of CVE-2026-39354?
CVE-2026-39354 is considered a high-severity vulnerability due to the impact it can have on the integrity of user data.
Who is affected by CVE-2026-39354?
CVE-2026-39354 affects all versions of Scoold prior to 1.66.2 for authenticated users.
How do I fix CVE-2026-39354?
To mitigate CVE-2026-39354, users should upgrade to Scoold version 1.66.2 or later.
What type of vulnerability is CVE-2026-39354?
CVE-2026-39354 is an authenticated arbitrary question overwrite vulnerability.
Can low-privileged users exploit CVE-2026-39354?
Yes, any logged-in low-privileged user can exploit CVE-2026-39354 to overwrite another user's questions.