SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-3758

bookstack is vulnerable to Server-Side Request Forgery (SSRF)

MEDIUM 6.5EPSS 0.80%

Does this matter?

Lower severity and a low EPSS score (0.80%). Track it; it rarely justifies an emergency change on its own.

Description

bookstack is vulnerable to Server-Side Request Forgery (SSRF)

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS
0.80% probability · 56th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-918
Affected
bookstackapp/bookstack
Source
security@huntr.dev
EPSS trend
0%3%5%26 October 2026: 0.80%26 October 202626 October 2026

EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.