CVE-2025-34086

Bolt CMS Authenticated Remote Code Execution via Profile Injection and File Rename

Published Jul 3, 2025 CVSS 4.0 · 7.5 High EPSS 4.3% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-19905 Bolt CMS vulnerable to authenticated remote code execution
Github GHSA Github GHSA GHSA-p9qc-8jjx-g8cg Bolt CMS vulnerable to authenticated remote code execution
History
Type Values Removed Values Added
First Time appeared Bolt
Bolt bolt Cms
CPEs cpe:2.3:a:bolt:bolt_cms:*:*:*:*:*:*:*:*
Vendors & Products Bolt
Bolt bolt Cms
Type Values Removed Values Added
First Time appeared Boltcms
Boltcms bolt
CPEs cpe:2.3:a:boltcms:bolt:*:*:*:*:*:*:*:*
Vendors & Products Boltcms
Boltcms bolt
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00926}

epss

{'score': 0.00683}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Bolt CMS Authenticated Remote Code Execution via Profile Injection and File Rename
Weaknesses CWE-434
CWE-94
References
Metrics cvssV4_0

{'score': 7.5, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:00 PM
Reserved
Apr 15, 2025, 7:15 PM
Status
Analyzed
Published
Jul 3, 2025, 8:15 PM
Modified
Oct 8, 2026, 4:16 PM