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Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in sulu/sulu

Moderate severity GitHub Reviewed Published Oct 21, 2021 in sulu/sulu • Updated Feb 1, 2023

Package

composer sulu/sulu (Composer)

Affected versions

< 1.6.43

Patched versions

1.6.43

Description

Impact

What kind of vulnerability is it? Who is impacted?

It is an issue when input HTML into the Tag name. The HTML is execute when the tag name is listed in the auto complete form.
Only admin users are affected and only admin users can create tags.

Patches

Has the problem been patched? What versions should users upgrade to?

The problem is patched with Version 1.6.42.

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

Create a custom request listener to avoid that this kind of tags are created.

References

Are there any links users can visit to find out more?

Currently not.

For more information

If you have any questions or comments about this advisory:

References

@alexander-schranz alexander-schranz published to sulu/sulu Oct 21, 2021
Published by the National Vulnerability Database Oct 21, 2021
Reviewed Oct 21, 2021
Published to the GitHub Advisory Database Oct 22, 2021
Last updated Feb 1, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N

EPSS score

0.050%
(22nd percentile)

Weaknesses

CVE ID

CVE-2021-41169

GHSA ID

GHSA-h58v-g3q6-q9fx

Source code

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