CVE-2025-32957Public exploitNetwork attack vector

Authenticated code execution via malicious restore archive

Published Mar 31, 2026 · Updated Mar 31, 2026

Unsafe file upload in baserCMS before 5.2.3 allows remote authenticated users to execute PHP code through a crafted restore archive. The database restore service extracts an uploaded ZIP and passes an archive-supplied PHP filename to require_once without validation or restriction. Administrative access to database restore is required, and successful exploitation grants code execution in the web server context.

CVSS severity8.7
High
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe file upload in baserCMS before 5.2.3 allows remote authenticated users to execute PHP code through a crafted restore archive. The database restore service extracts an uploaded ZIP and passes an archive-supplied PHP filename to require_once without validation or restriction. Administrative access to database restore is required, and successful exploitation grants code execution in the web server context.

The record

CVE
CVE-2025-32957
Published
Mar 31, 2026
Updated
Mar 31, 2026
Vendor
baserCMS Users Community
Product
baserCMS
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 31, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

baserCMS Users Community · baserCMSversion=< 5.2.3

Published CVSS scores

7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.7GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Web Shell

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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