The filename of uploaded files vulnerable to stored XSS in Bolt CMS
CVE-2020-4041

7.4HIGH

Key Information:

Vendor

Bolt

Status
Bolt
Vendor
CVE Published:
8 June 2020

What is CVE-2020-4041?

In Bolt CMS before version 3.7.1, the filename of uploaded files was vulnerable to stored XSS. It is not possible to inject javascript code in the file name when creating/uploading the file. But, once created/uploaded, it can be renamed to inject the payload in it. Additionally, the measures to prevent renaming the file to disallowed filename extensions could be circumvented. This is fixed in Bolt 3.7.1.

Affected Version(s)

bolt < 3.7.1

References

https://github.com/bolt/bolt/pull/7853
x_refsource_MISC
https://github.com/bolt/bolt/commit/b42cbfcf3e3108c46a805...
x_refsource_MISC
https://github.com/bolt/bolt/security/advisories/GHSA-68q...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.