CVE-2021-4026
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
bookstack is vulnerable to Improper Access Control
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | ssddanbrown/bookstack | <21.11.2 | 21.11.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-4026
- https://github.com/bookstackapp/bookstack/commit/b4fa82e3298a15443ca40bff205b7a16a1031d92
- https://github.com/BookStackApp/BookStack/releases/tag/v21.11.2
- https://github.com/bookstackapp/bookstack
- https://huntr.dev/bounties/c6dfa80d-43e6-4b49-95af-cc031bb66b1d
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.