Medium severity · published Sep 19, 2025
CVE-2025-57880
Potential XSS in Extension:BlueSpiceWhoIsOnline
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
Improper Encoding or Escaping of Output vulnerability in Hallo Welt! GmbH BlueSpice (Extension:BlueSpiceWhoIsOnline) allows Cross-Site Scripting (XSS).
This issue affects BlueSpice: from 5 through 5.1.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BL
BlueSpice · Hallo Welt! GmbH
5 through 5.1.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-57880
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-57880
Vendor Advisory
https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2025-05
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