CVE-2025-34086Public exploitNetwork attack vector

Authenticated code execution via profile injection and rename

Published Jul 3, 2025 · Updated May 15, 2026

Code injection in Bolt CMS 3.7.0 and earlier allows remote authenticated users to execute arbitrary PHP through a crafted profile. The profile handler stores an unsanitized displayname in a session file, and the backend file browser can rename that cache file into /files/ with a PHP extension. Valid backend credentials and writable cache and public-files paths are required; the renamed session becomes an executable web shell.

CVSS severity7.5
High
EPSS probability3.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Bolt CMS 3.7.0 and earlier allows remote authenticated users to execute arbitrary PHP through a crafted profile. The profile handler stores an unsanitized displayname in a session file, and the backend file browser can rename that cache file into /files/ with a PHP extension. Valid backend credentials and writable cache and public-files paths are required; the renamed session becomes an executable web shell.

The record

CVE
CVE-2025-34086
Published
Jul 3, 2025
Updated
May 15, 2026
Vendor
Bolt CMS
Product
Bolt CMS
Classifications
CWE-94, CWE-434, CAPEC-242, CAPEC-137, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 3, 2025CVE publishedPublication date reported by the CVE source.
  2. May 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <=3.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Bolt CMS · Bolt CMSversion=0 <=3.7.0

Published CVSS scores

7.5VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-242Code Injection
CAPEC-137Parameter Injection
T1505.003Server Software Component: Web 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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