CVE-2022-42001: Potential XSS in book navigation

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-11-15 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site Scripting (XSS) vulnerability in BlueSpiceBookshelf extension of BlueSpice allows user with regular account and edit permissions to inject arbitrary HTML into the book navigation.

Affected products

Hallo Welt! GmbH BlueSpice: from 4.1.0 before 4.2.1 — fixed in 4.2.1

How to fix

Upgrade to a fixed version: Hallo Welt! GmbH BlueSpice 4.2.1. Check the vendor advisory for mitigations.

References

https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2022-05
https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2022-05

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