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CVE-2024-45515: An issue was discovered in Zimbra Collaboration (ZCS) through 10.1

28
Routine
MEDIUM 6.1UPGRADE

CVE-2024-45515 is a medium-severity flaw (CVSS 6.1) affecting collaboration. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

  • No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score6.1 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionRequired
EPSS exploit chance0.3% (top 75%)
CISA exploited listNo
WeaknessCWE-79
Published2025-07-30
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: zimbra

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

zimbra collaboration UPGRADE
Affected: <= 10.1.0
Fixed in: newer than 10.1.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy collaboration || rpm -q collaboration || collaboration --version
2. UPGRADE to newer than 10.1.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade collaboration
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade collaboration
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-45515?

collaboration: upgrade to newer than 10.1.0. Exact commands for each OS are on this page.

Is CVE-2024-45515 being exploited?

CVE-2024-45515 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-45515 affect?

CVE-2024-45515 affects collaboration. Severity is medium (CVSS 6.1). 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. Att

How urgent is CVE-2024-45515?

Priority 28/100. No elevated risk signals yet.

Software pages

Zimbra vulnerabilities

Related CVEs

References

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