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GHSA-vvxf-r4vm-2vm6

MediumCVSS 6.1 / 10
Published Nov 21, 2022·Last modified Apr 29, 2025
Affected Components(0)

No affected components available

Description

An attacker could inject a XSS payload in a Silverstripe CMS response by carefully crafting a return URL on a /dev/build or /Security/login request.

To exploit this vulnerability, an attacker would need to convince a user to follow a link with a malicious payload.

This will only affect projects configured to output PHP warnings to the browser. By default, Silverstripe CMS will only output PHP warnings if your SS_ENVIRONMENT_TYPE environment variable is set to dev. Production sites should always set SS_ENVIRONMENT_TYPE to live.

Risk Scores
Base Score
6.1

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.

Threat Intelligence
5.6

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.47%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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