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CVE-2026-63151 Omnispace Agora Project 26.10.0 Predictable Token Information Disclosure via DisplayIcal

8.7 high

High (8.7) in omnispace agora project.

On this page
Omnispace Agora Project through 26.10.0 contains a predictable token generation vulnerability that allows unauthenticated attackers to access private calendar data by exploiting a missing dateCrea value that causes the md5Id token to collapse to md5(calendarId.userId), both small enumerable integers. Attackers can compute valid tokens and request the misc&action=DisplayIcal endpoint with a forged md5Id to read any user's private calendar events without authentication.

Severity

CVSS 4.0

8.7 high
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
CWE-330 Use of Insufficiently Random Values
OWASP Top 10
A04:2025 Cryptographic Failures
Published
Modified
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

  • omnispace:agora project

Versions

From the CNA's record in the CVE List.

ProductAffected
Omnispace Agora Projectthrough 26.10.0

Attack patterns (CAPEC)

  • CAPEC-59 Session Credential Falsification through Prediction Likelihood: High · Severity: High
  • CAPEC-112 Brute Force Severity: High
  • CAPEC-485 Signature Spoofing by Key Recreation Likelihood: Low · Severity: High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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