How severe is CVE-2024-55888?

CVE-2024-55888 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2024-55888 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-55888?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-55888 have an EU (EUVD) identifier?

Yes. CVE-2024-55888 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-52842.

When was CVE-2024-55888 published?

CVE-2024-55888 was published on 2024-12-12 and last updated on 2026-06-17.

CVE-2024-55888

CVE-2024-55888 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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-1021.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-52842
Weakness: CWE-1021
Published: 2024-12-12
Last modified: 2026-06-17

Description

Hush Line is an open-source whistleblower management system. Starting in version 0.1.0 and prior to version 0.3.5, the productions server appeared to have been misconfigured and missed providing any content security policy or security headers. This could result in bypassing of cross-site scripting filters. Version 0.3.5 fixed the issue.

Frequently asked questions

What is CVE-2024-55888?: Hush Line is an open-source whistleblower management system. Starting in version 0.1.0 and prior to version 0.3.5, the productions server appeared to have been misconfigured and missed providing any content security policy or security headers. This could result in bypassing of cross-site scripting filters. Version 0.3.5 fixed the issue.
How severe is CVE-2024-55888?: CVE-2024-55888 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2024-55888 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-55888?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-55888 have an EU (EUVD) identifier?: Yes. CVE-2024-55888 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-52842.
When was CVE-2024-55888 published?: CVE-2024-55888 was published on 2024-12-12 and last updated on 2026-06-17.

References

https://github.com/scidsg/hushline/security/advisories/GHSA-m592-g8qv-hrqx

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