CVE-2025-64442: HumHub is an Open Source Enterprise Social Network

Q: How do I fix CVE-2025-64442?

humhub: upgrade to 1.17.4. Exact commands for each OS are on this page.

Q: Is CVE-2025-64442 being exploited?

CVE-2025-64442 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-64442 affect?

CVE-2025-64442 affects humhub. Severity is medium (CVSS 6.1). HumHub is an Open Source Enterprise Social Network. Versions below 1.17.4 have a XSS vulnerability in the Meta-Search feature which allows malicious input to be executed in search previews. This issue is fixed in version 1.17.4.

Q: How urgent is CVE-2025-64442?

Priority 25/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2025-64442 is a medium-severity flaw (CVSS 6.1) affecting humhub. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HumHub is an Open Source Enterprise Social Network. Versions below 1.17.4 have a XSS vulnerability in the Meta-Search feature which allows malicious input to be executed in search previews. This issue is fixed in version 1.17.4.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-11-07
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: humhub

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

Am I affected?

Timeline

2025-11-07 21:15 UTCPublished CVE record published
2026-06-17 09:54 UTCUpdated Record last modified

humhub humhub UPGRADE

Affected: < 1.17.4

Fixed in: 1.17.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy humhub || rpm -q humhub || humhub --version

2. UPGRADE to 1.17.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade humhub

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade humhub

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-2025-64442?

humhub: upgrade to 1.17.4. Exact commands for each OS are on this page.

Is CVE-2025-64442 being exploited?

CVE-2025-64442 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-2025-64442 affect?

CVE-2025-64442 affects humhub. Severity is medium (CVSS 6.1). HumHub is an Open Source Enterprise Social Network. Versions below 1.17.4 have a XSS vulnerability in the Meta-Search feature which allows malicious input to be executed in search previews. This issue is fixed in version 1.17.4.

How urgent is CVE-2025-64442?

Priority 25/100. No elevated risk signals yet.

Related CVEs

CVE-2026-29048 MEDIUM 6.1 DOWNGRADE HumHub is an Open Source Enterprise Social Network
CVE-2024-52043 MEDIUM 5.3 UPGRADE Generation of Error Message Containing Sensitive Information in HumHub GmbH & Co

References

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