How severe is CVE-2024-56364?

CVE-2024-56364 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-56364 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-56364?

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

Does CVE-2024-56364 have an EU (EUVD) identifier?

Yes. CVE-2024-56364 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3611.

When was CVE-2024-56364 published?

CVE-2024-56364 was published on 2024-12-23 and last updated on 2026-06-17.

CVE-2024-56364

CVE-2024-56364 is a medium-severity vulnerability with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-3611
Weakness: CWE-79
Published: 2024-12-23
Last modified: 2026-06-17

Description

SimpleXLSX is software for parsing and retrieving data from Excel XLSx files. Starting in 1.0.12 and ending in 1.1.13, when calling the extended toHTMLEx method, it is possible to execute arbitrary JavaScript code. This vulnerability is fixed in 1.1.13.

Frequently asked questions

What is CVE-2024-56364?: SimpleXLSX is software for parsing and retrieving data from Excel XLSx files. Starting in 1.0.12 and ending in 1.1.13, when calling the extended toHTMLEx method, it is possible to execute arbitrary JavaScript code. This vulnerability is fixed in 1.1.13.
How severe is CVE-2024-56364?: CVE-2024-56364 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-56364 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-56364?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-56364 have an EU (EUVD) identifier?: Yes. CVE-2024-56364 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3611.
When was CVE-2024-56364 published?: CVE-2024-56364 was published on 2024-12-23 and last updated on 2026-06-17.

References

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