CVE-2021-3767
MEDIUM severity · CVSS 5.4 · Cross-site scripting (XSS)
5.4CVSS MEDIUM
Summary
bookstack is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
Confidentiality impactLow
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/bookstackapp/bookstack/commit/040997fdc4414776bcac06a3cbaac3b26b5e8a64 ↗