cve.bz

CVE-2023-26451

7.5 highEPSS 1.2%

High (7.5) in open-xchange open-xchange appsuite backend. EPSS 1.2% chance of exploitation in the next 30 days.

Functions with insufficient randomness were used to generate authorization tokens of the integrated oAuth Authorization Service. Authorization codes were predictable for third parties and could be used to intercept and take over the client authorization process. As a result, other users accounts could be compromised. The oAuth Authorization Service is not enabled by default. We have updated the implementation to use sources with sufficient randomness to generate authorization tokens. No publicly available exploits are known.

Severity

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
EPSS
1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE
CWE-330
Published
Modified
Record from
the NVD, synced

Affected

References

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