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.

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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

JSON
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