CVE-2023-25820

Summary

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform, and Nextcloud Enterprise Server is the enterprise version of the file server software. In Nextcloud Server versions 25.0.x prior to 25.0.5 and versions 24.0.x prior to 24.0.10 as well as Nextcloud Enterprise Server versions 25.0.x prior to 25.0.4, 24.0.x prior to 24.0.10, 23.0.x prior to 23.0.12.5, 22.x prior to 22.2.0.10, and 21.x prior to 21.0.9.10, when an attacker gets access to an already logged in user session they can then brute force the password on the confirmation endpoint. Nextcloud Server should upgraded to 24.0.10 or 25.0.4 and Nextcloud Enterprise Server should upgraded to 21.0.9.10, 22.2.10.10, 23.0.12.5, 24.0.10, or 25.0.4 to receive a patch. No known workarounds are available.

Affected Software

VendorProductVersion RangeStatus
nextcloudsecurity-advisoriesNextcloud Server >= 24.0.0, < 24.0.10affected
nextcloudsecurity-advisoriesNextcloud Server >= 25.0.0, < 25.0.4affected
nextcloudsecurity-advisoriesNextcloud Enterprise Server >= 25.0.0, < 25.0.4affected
nextcloudsecurity-advisoriesNextcloud Enterprise Server >= 24.0.0, < 24.0.10affected
nextcloudsecurity-advisoriesNextcloud Enterprise Server >= 23.0.0, < 23.0.12.5affected
nextcloudsecurity-advisoriesNextcloud Enterprise Server >= 22.0.0, < 22.2.10.10affected
nextcloudsecurity-advisoriesNextcloud Enterprise Server >= 21.0.0, < 21.0.9.10affected

Weaknesses

  • CWE-307: CWE-307: Improper Restriction of Excessive Authentication Attempts

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References