Browsershot 3.57.3 - Server Side XSS to LFR via HTML
7,5
High
Discovered by
Offensive Team, Fluid Attacks
Summary
Full name
Browsershot 3.57.3 - Server Side XSS to LFR via HTML
Code name
State
Public
Release date
21 de nov. de 2022
Affected product
Browsershot
Affected version(s)
Version 3.57.3
Vulnerability name
Server Side XSS
Vulnerability type
Remotely exploitable
Yes
CVSS v3.1 vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v3.1 base score
7.5
Exploit available
Yes
CVE ID(s)
Description
Browsershot version 3.57.3 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate that the JS content imported from an external source passed to the Browsershot::html method does not contain URLs that use the file:// protocol.
Vulnerability
This vulnerability occurs because the application does not validate that the JS content imported from an external source passed to the Browsershot::html method does not contain URLs that use the file:// protocol.
Evidence of exploitation
Our security policy
We have reserved the CVE-2022-43984 to refer to these issues from now on. Disclosure policy
System Information
Version: Browsershot 3.57.3
Operating System: GNU/Linux
Mitigation
An updated version of Browsershot is available at the vendor page.
References
Vendor page https://github.com/spatie/browsershot
Timeline
Vulnerability discovered
25 de out. de 2022
Vendor contacted
25 de out. de 2022
Vendor replied
25 de out. de 2022
Vendor confirmed
25 de out. de 2022
Public disclosure
21 de nov. de 2022
