CVE-2025-46703 | BDVDB-2026-294753 Detail

Hallo Welt!BlueSpice

Description#

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.

Impact#

CAPEC-63 Cross-Site Scripting (XSS)

Weaknesses#

CWE-116 Improper Encoding or Escaping of Output

References#

https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2025-05

Exploit#

No public exploit known

History#

Version 12025-09-19Record published in the CVE List.

Published

Published: 2025-09-19
Last modified: 2025-09-19

Vendor information

Vendor: Hallo Welt!
Product: BlueSpice

All Hallo Welt! vulnerabilities

Score

5.9 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 9.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 5 and <= 5.1.1
Fixed
Not stated

Scoring System

CVSS v4.0

5.9 Medium

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	Present
Privileges Required	Low
User Interaction	Passive
Vulnerable System Confidentiality	High
Vulnerable System Integrity	Low
Vulnerable System Availability	None
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).