How severe is CVE-2026-39354?

CVE-2026-39354 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-39354 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-39354?

CVE-2026-39354 affects Erudika Scoold. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-39354?

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

Does CVE-2026-39354 have an EU (EUVD) identifier?

Yes. CVE-2026-39354 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19863.

When was CVE-2026-39354 published?

CVE-2026-39354 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-39354

CVE-2026-39354 is a medium-severity vulnerability in Erudika Scoold with a CVSS 3.x base score of 6.5. 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 6.5)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19863
Weakness: CWE-639
Affected product: Erudika Scoold
Published: 2026-04-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-39354?: CVE-2026-39354 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-39354 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-39354?: CVE-2026-39354 affects Erudika Scoold. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-39354?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39354 have an EU (EUVD) identifier?: Yes. CVE-2026-39354 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19863.
When was CVE-2026-39354 published?: CVE-2026-39354 was published on 2026-04-07 and last updated on 2026-06-17.

References

https://github.com/Erudika/scoold/security/advisories/GHSA-768r-cv9p-wrcm

Affected products (1)

cpe:2.3:a:erudika:scoold:*:*:*:*:*:*:*:*

More vulnerabilities in Erudika Scoold

CVE-2022-1543 — High (CVSS 8.8): Improper handling of Length parameter in GitHub repository erudika/scoold prior to 1.49.4. When the text size is large…
CVE-2026-34832 — Medium (CVSS 6.5): Scoold is a Q&A and a knowledge sharing platform for teams. Prior to version 1.66.1, Scoold contains an authenticated…
CVE-2021-46372 — Medium (CVSS 5.4): Scoold 1.47.2 is a Q&A/knowledge base platform written in Java. When writing a Q&A, the markdown editor is vulnerable…
CVE-2024-50334 — Medium (CVSS 5.3): Scoold is a Q&A and a knowledge sharing platform for teams. A semicolon path injection vulnerability was found on the…

All CVEs affecting Erudika Scoold →

Other CWE-639 (Authorization Bypass Through User-Controlled Key (IDOR)) vulnerabilities

CVE-2025-40805 — Critical (CVSS 10.0): Affected devices do not properly enforce user authentication on specific API endpoints. This could facilitate an…
CVE-2024-45032 — Critical (CVSS 10.0): A vulnerability has been identified in Industrial Edge Management Pro (All versions < V1.9.5), Industrial Edge…
CVE-2026-34037 — Critical (CVSS 9.9): Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to…
CVE-2026-52782 — Critical (CVSS 9.9): OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is an IDOR through…
CVE-2026-45552 — Critical (CVSS 9.9): Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior,…
CVE-2026-29200 — Critical (CVSS 9.9): A critical IDOR vulnerability has been discovered in Comet Backup affecting all versions from 20.11.0 to 26.1.1 and…

Browse all CWE-639 (Authorization Bypass Through User-Controlled Key (IDOR)) vulnerabilities →