CVE-2021-43808

2021-12-0800:00:00

ubuntu.com

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

0.001 Low

EPSS

Percentile

48.8%

JSON

Laravel is a web application framework. Laravel prior to versions 8.75.0,
7.30.6, and 6.20.42 contain a possible cross-site scripting (XSS)
vulnerability in the Blade templating engine. A broken HTML element may be
clicked and the user taken to another location in their browser due to XSS.
This is due to the user being able to guess the parent placeholder SHA-1
hash by trying common names of sections. If the parent template contains an
exploitable HTML structure an XSS vulnerability can be exposed. This
vulnerability has been patched in versions 8.75.0, 7.30.6, and 6.20.42 by
determining the parent placeholder at runtime and using a random hash that
is unique to each request.