CVE-2025-15009: A flaw has been found in liweiyi ChestnutCMS up to 1.5.8

Q: How do I fix CVE-2025-15009?

chestnutcms: upgrade to newer than 1.5.8. Exact commands for each OS are on this page.

Q: Is CVE-2025-15009 being exploited?

CVE-2025-15009 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-2025-15009 affect?

CVE-2025-15009 affects chestnutcms. Severity is medium (CVSS 6.3). A flaw has been found in liweiyi ChestnutCMS up to 1.5.8. This vulnerability affects the function FilenameUtils.getExtension of the file /dev-api/common/upload of the component Filename Handler. Executing manipulation of the argument File c

Q: How urgent is CVE-2025-15009?

Priority 34/100. Public exploit reference

Routine

MEDIUM 6.3UPGRADE

CVE-2025-15009 is a medium-severity flaw (CVSS 6.3) affecting chestnutcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw has been found in liweiyi ChestnutCMS up to 1.5.8. This vulnerability affects the function FilenameUtils.getExtension of the file /dev-api/common/upload of the component Filename Handler. Executing manipulation of the argument File can lead to unrestricted upload. The attack may be launched remotely. The exploit has been published and may be used.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-284, CWE-434
Published	2025-12-22
Last modified	2026-10-19

Publisher (CNA): VulDB · Vendor: 1000mz

Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-22 03:15 UTCPublished CVE record published
2026-10-19 22:10 UTCUpdated Record last modified

1000mz chestnutcms UPGRADE

Affected: <= 1.5.8

Fixed in: newer than 1.5.8

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.5.8 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chestnutcms

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-2025-15009?

chestnutcms: upgrade to newer than 1.5.8. Exact commands for each OS are on this page.

Is CVE-2025-15009 being exploited?

CVE-2025-15009 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-2025-15009 affect?

CVE-2025-15009 affects chestnutcms. Severity is medium (CVSS 6.3). A flaw has been found in liweiyi ChestnutCMS up to 1.5.8. This vulnerability affects the function FilenameUtils.getExtension of the file /dev-api/common/upload of the component Filename Handler. Executing manipulation of the argument File c

How urgent is CVE-2025-15009?

Priority 34/100. Public exploit reference

Related CVEs

CVE-2025-12923 LOW 2.7 UPGRADE A vulnerability was determined in liweiyi ChestnutCMS up to 1.5.8
CVE-2025-70073 HIGH 7.2 UPGRADE An issue in ChestnutCMS v.1.5.8 and before allows a remote attacker to execute arbitrary code via the template
CVE-2025-2917 MEDIUM 4.3 UPGRADE A vulnerability, which was classified as problematic, was found in ChestnutCMS up to 1.5.3
CVE-2024-57452 HIGH 7.5 UPGRADE ChestnutCMS <=1.5.0 has an arbitrary file deletion vulnerability in contentcore.controller.FileController, whi
CVE-2024-57451 HIGH 7.5 UPGRADE ChestnutCMS <=1.5.0 has a directory traversal vulnerability in contentcore.controller.FileController#getFileLi

References

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