What is CVE-2025-46703?

CVE-2025-46703 is a medium-severity vulnerability in Hallowelt Bluespice, classified under Improper Encoding or Escaping of Output. CVSS score: 6.4/10. Published 2025-09-19.

How severe is CVE-2025-46703?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Is CVE-2025-46703 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Hallowelt Bluespice

CVE-2025-46703

Improper Encoding or Escaping of Output vulnerability in Hallo Welt! GmbH BlueSpice (Extension:AtMentions) allows Cross-Site Scripting (XSS). This issue affects BlueSpice: from 5 through 5.1.1.

EPSS: 0.002 (7.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Hallowelt Bluespice
Hallo Welt! Gmbh Bluespice — versions 5

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

security@bluespice.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-46703?: CVE-2025-46703 is a medium-severity vulnerability in Hallowelt Bluespice, classified under Improper Encoding or Escaping of Output. CVSS score: 6.4/10. Published 2025-09-19.
How severe is CVE-2025-46703?: Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2025-46703 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.