Disclosure summary
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.
Source-reported weakness categories
CWE-94, CWE-434
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-34086
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| boltcms | bolt | * {"versionEndIncluding":"3.7.0"} |
Original records & references
- NIST NVD record
- CVE Program record
- boltcms.io — Release Notes
- github.com — Product
- github.com — Release Notes
- raw.githubusercontent.com — Exploit
- www.exploit-db.com — Exploit, VDB Entry
- www.rapid7.com — Exploit, Third Party Advisory
PUBLISHED 2025-07-03T16:15:22-04:00
MODIFIED 2026-10-08T12:16:50-04:00
INGESTED 2026-10-10T20:50:21-04:00