VulnerabilityModified
CVE-2021-4119
bookstack is vulnerable to Improper Access Control
CRITICAL 9.8EPSS 26.9%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 26.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
bookstack is vulnerable to Improper Access Control
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 26.89% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- bookstackapp/bookstack
- Source
- security@huntr.dev
EPSS 26.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/bookstackapp/bookstack/commit/e765e618547c92f4e0b46caca6fb91f0174efd99Patch, Third Party Advisory
- https://huntr.dev/bounties/135f2d7d-ab0b-4351-99b9-889efac46fcaExploit, Patch, Third Party Advisory
- https://github.com/bookstackapp/bookstack/commit/e765e618547c92f4e0b46caca6fb91f0174efd99Patch, Third Party Advisory
- https://huntr.dev/bounties/135f2d7d-ab0b-4351-99b9-889efac46fcaExploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.