CVE-2025-55010: Kanboard is project management software that focuses on the Kanban methodology

Q: How do I fix CVE-2025-55010?

kanboard: upgrade to 1.2.47. Exact commands for each OS are on this page.

Q: Is CVE-2025-55010 being exploited?

CVE-2025-55010 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-2025-55010 affect?

CVE-2025-55010 affects kanboard. Severity is critical (CVSS 9.1). Kanboard is project management software that focuses on the Kanban methodology. Prior to version 1.2.47, an unsafe deserialization vulnerability in the ProjectEventActvityFormatter allows admin users the ability to instantiate arbitrary php

Q: How urgent is CVE-2025-55010?

Priority 52/100. Critical severity; Public exploit reference

This month

CRITICAL 9.1UPGRADE

CVE-2025-55010 is a critical-severity flaw (CVSS 9.1) affecting kanboard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Kanboard is project management software that focuses on the Kanban methodology. Prior to version 1.2.47, an unsafe deserialization vulnerability in the ProjectEventActvityFormatter allows admin users the ability to instantiate arbitrary php objects by modifying the event["data"] field in the project_activities table. A malicious actor can update this field to use a php gadget to write a web shell into the /plugins folder, which then gives remote

Why this priority

Critical severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-502
Published	2025-08-12
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2025-08-12 16:15 UTCPublished CVE record published
2026-06-17 09:41 UTCUpdated Record last modified

kanboard kanboard UPGRADE

Affected: < 1.2.47

Fixed in: 1.2.47

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.2.47 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kanboard

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-2025-55010?

kanboard: upgrade to 1.2.47. Exact commands for each OS are on this page.

Is CVE-2025-55010 being exploited?

CVE-2025-55010 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-2025-55010 affect?

CVE-2025-55010 affects kanboard. Severity is critical (CVSS 9.1). Kanboard is project management software that focuses on the Kanban methodology. Prior to version 1.2.47, an unsafe deserialization vulnerability in the ProjectEventActvityFormatter allows admin users the ability to instantiate arbitrary php

How urgent is CVE-2025-55010?

Priority 52/100. Critical severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-33058 MEDIUM 6.5 UPGRADE Kanboard is project management software focused on Kanban methodology
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CVE-2026-25924 HIGH 8.4 UPGRADE Kanboard is project management software focused on Kanban methodology
CVE-2026-25531 MEDIUM 4.3 UPGRADE Kanboard is project management software focused on Kanban methodology
CVE-2026-25530 MEDIUM 4.3 UPGRADE Kanboard is project management software focused on Kanban methodology

References

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