How severe is CVE-2024-45515?

CVE-2024-45515 has a CVSS 3.x base score of 6.1, rated medium 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 none.

Is CVE-2024-45515 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-45515?

CVE-2024-45515 affects Zimbra Collaboration. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-45515?

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

Does CVE-2024-45515 have an EU (EUVD) identifier?

Yes. CVE-2024-45515 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54837.

When was CVE-2024-45515 published?

CVE-2024-45515 was published on 2025-07-30 and last updated on 2026-06-17.

CVE-2024-45515

CVE-2024-45515 is a medium-severity vulnerability in Zimbra Collaboration with a CVSS 3.x base score of 6.1. 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: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54837
Weakness: CWE-79
Affected product: Zimbra Collaboration
Published: 2025-07-30
Last modified: 2026-06-17

Description

An issue was discovered in Zimbra Collaboration (ZCS) through 10.1. A Cross-Site Scripting (XSS) vulnerability exists in Zimbra webmail due to insufficient validation of the content type metadata when importing files into the briefcase. Attackers can exploit this issue by crafting a file with manipulated metadata, allowing them to bypass content type checks and execute arbitrary JavaScript within the victim's session.

Frequently asked questions

What is CVE-2024-45515?: An issue was discovered in Zimbra Collaboration (ZCS) through 10.1. A Cross-Site Scripting (XSS) vulnerability exists in Zimbra webmail due to insufficient validation of the content type metadata when importing files into the briefcase. Attackers can exploit this issue by crafting a file with manipulated metadata, allowing them to bypass content type checks and execute arbitrary JavaScript within the victim's session.
How severe is CVE-2024-45515?: CVE-2024-45515 has a CVSS 3.x base score of 6.1, rated medium 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 none.
Is CVE-2024-45515 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-45515?: CVE-2024-45515 affects Zimbra Collaboration. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-45515?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-45515 have an EU (EUVD) identifier?: Yes. CVE-2024-45515 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54837.
When was CVE-2024-45515 published?: CVE-2024-45515 was published on 2025-07-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:zimbra:collaboration:*:*:*:*:*:*:*:*

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