CVE-2015-7309Bolt Vulnerability
The theme editor in Bolt before 2.2.5 does not check the file extension when renaming files, which allows remote authenticated users to execute arbitrary code by renaming a crafted file and then directly accessing it.
Published Sep 22, 2015 · Updated May 6, 2026
Key Facts
Routine patching- CVE-2015-7309 is a medium-severity vulnerability (CVSS 6.5 v2) affecting Bolt (Boltcms).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 39% probability of exploitation in the next 30 days.
- Fixed versions are available, including Bolt 2.2.0.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v2
6.5
AV:N/AC:L/Au:S/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
39%
Higher than 98.5% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
49/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
4
Proof-of-concept links
In-the-wild evidence
3
Reports of active use
Advisories And Exploit References
Description
The theme editor in Bolt before 2.2.5 does not check the file extension when renaming files, which allows remote authenticated users to execute arbitrary code by renaming a crafted file and then directly accessing it.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| BoltBoltcms | See advisory | 2.2.0 |
Patched Releases
Bolt
2.2.0
Timeline
Publicly disclosed
Sep 22, 2015
Last updated
May 6, 2026
Weakness Type
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
References
- patchbolt.cm · bolt-2-2-5-released
- exploitblog.curesec.com · Bolt-224-Code-Execution-44.html
- exploitpacketstormsecurity.com · CMS-Bolt-2.2.4-File-Upload.html
- exploit20150818 Bolt 2.2.4 - Code Execution
- exploitMSF bolt_file_upload.rb
FAQ
Common Questions.
The theme editor in Bolt before 2.2.5 does not check the file extension when renaming files, which allows remote authenticated users to execute arbitrary code by renaming a crafted file and then directly accessing it.
Affected: Bolt (Boltcms). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Bolt 2.2.0.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
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