How severe is CVE-2023-42431?

CVE-2023-42431 has a CVSS 3.x base score of 2.1, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-42431 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-42431?

CVE-2023-42431 affects Hallowelt Bluespice. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-42431?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-42431 published?

CVE-2023-42431 was published on 2023-10-30 and last updated on 2026-06-17.

CVE-2023-42431

CVE-2023-42431 is a low-severity vulnerability in Hallowelt Bluespice with a CVSS 3.x base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Low (CVSS 3.x base score 2.1)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Hallowelt Bluespice
Published: 2023-10-30
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-42431?: CVE-2023-42431 has a CVSS 3.x base score of 2.1, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-42431 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-42431?: CVE-2023-42431 affects Hallowelt Bluespice. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-42431?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-42431 published?: CVE-2023-42431 was published on 2023-10-30 and last updated on 2026-06-17.

References

https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2023-02

Affected products (1)

cpe:2.3:a:hallowelt:bluespice:*:*:*:*:*:*:*:*

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