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TI-2026-28342 Aliases CVE-2026-39354

Scoold has an Authenticated Arbitrary Question Overwrite via Client-Controlled postId in POST /questions/ask

Priority MEDIUM 62CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00215 11th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed scoold (Erudika): 1.66.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Erudikascooldbefore 1.66.21.66.2Patch availableCNA
  • scoold VendorErudika Affected before 1.66.2 Fixed in 1.66.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:erudika:scoold:*:*:*:*:*:*:*:*before 1.66.2VulnerableErudika
  • cpe:2.3:a:erudika:scoold:*:*:*:*:*:*:*:* Versions before 1.66.2 Vulnerable ·Erudika

Remediation

  • Fix · CNA scoold (Erudika) Fixed in 1.66.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-39354

References

Exploit 1

  • TI-2026-27076 Scoold: Cross-Account Feedback Deletion (IDOR) CVSS 3.1MEDIUM 6.5
  • TI-2024-33769 Semicolon Path Injection on API /api;/config CVSS 4.0HIGH 8.7
  • TI-2022-01415 Improper handling of Length parameter in erudika/scoold CVSS 3.1HIGH 8.8
  • TI-2021-21201 Scoold 1.47.2 is a Q&A/knowledge base platform written in Java. CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences