CVE-2025-65838Public exploitNetwork attack vector

Arbitrary file overwrite via unsanitized upload filename

Published Dec 1, 2025 · Updated Dec 3, 2025

Path traversal in PublicCMS 5.202506.b allows remote attackers to overwrite server files through a crafted site archive filename. The doUploadSitefile method passes MultipartFile.getOriginalFilename() into getSiteFilePath() after checking only the -site.zip suffix, without removing ../ path segments. No account or user action is required by the published assessment; successful traversal lets the archive path escape its intended directory and replace files accessible to the service.

CVSS severity7.5
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in PublicCMS 5.202506.b allows remote attackers to overwrite server files through a crafted site archive filename. The doUploadSitefile method passes MultipartFile.getOriginalFilename() into getSiteFilePath() after checking only the -site.zip suffix, without removing ../ path segments. No account or user action is required by the published assessment; successful traversal lets the archive path escape its intended directory and replace files accessible to the service.

The record

CVE
CVE-2025-65838
Published
Dec 1, 2025
Updated
Dec 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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