What is CVE-2023-42431?

CVE-2023-42431 is a low-severity vulnerability in Hallowelt Bluespice, classified under Improper Input Validation. CVSS score: 2.1/10. Published 2023-10-30.

How severe is CVE-2023-42431?

Low severity. CVSS v3 base score is 2.1 out of 10.

Is CVE-2023-42431 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-2023-42431

Cross-site Scripting (XSS) vulnerability in BlueSpiceAvatars extension of BlueSpice allows logged in user to inject arbitrary HTML into the profile image dialog on Special:Preferences. This only applies to the genuine user context.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2023-10-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.1 (Low). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (25.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Hallowelt Bluespice
Hallo Welt! Gmbh Bluespice — versions 4, 3

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2023-02 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-42431?: CVE-2023-42431 is a low-severity vulnerability in Hallowelt Bluespice, classified under Improper Input Validation. CVSS score: 2.1/10. Published 2023-10-30.
How severe is CVE-2023-42431?: Low severity. CVSS v3 base score is 2.1 out of 10.
Is CVE-2023-42431 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.