CVE-2025-34086

HIGH EPSS 79.8%
Published Jul 3, 202512mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 4.0
High
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Published Jul 3, 2025 12mo ago
Last Modified Jun 17, 2026 2w ago

Description

Bolt CMS versions 3.7.0 and earlier contain a chain of vulnerabilities that together allow an authenticated user to achieve remote code execution. A user with valid credentials can inject arbitrary PHP code into the displayname field of the user profile, which is rendered unsanitized in backend templates. The attacker can then list and rename cached session files via the /async/browse/cache/.sessions and /async/folder/rename endpoints. By renaming a .session file to a path under the publicly accessible /files/ directory with a .php extension, the attacker can turn the injected code into an executable web shell. Finally, the attacker triggers the payload via a crafted HTTP GET request to the rogue file. NOTE: The vendor announced that Bolt 3 reached end-of-life after 31 December 2021.

CVSS Details

Base Score
7.5
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
79.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt
CWE-94 Improper Control of Generation of Code (Code Injection) Injection

Affected Products 1

VendorProductVersionRange
boltcmsbolt* ≤3.7.0

References 6

  • boltcms.io https://boltcms.io/newsitem/major-announcements-bolt-3-eol-bolt-4-2-5-0-releases
    Release Notes
  • github.com https://github.com/bolt/bolt
    Product
  • github.com https://github.com/bolt/bolt/releases/tag/3.7.1
    Release Notes
  • raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/bolt_authenticated_rce.rb
    Exploit
  • exploit-db.com https://www.exploit-db.com/exploits/48296
    ExploitVDB Entry
  • rapid7.com https://www.rapid7.com/db/modules/exploit/unix/webapp/bolt_authenticated_rce/
    ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.