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smarty Cross-site Scripting vulnerability in Javascript escaping

High severity GitHub Reviewed Published Mar 28, 2023 in smarty-php/smarty • Updated Feb 1, 2024

Package

composer smarty/smarty (Composer)

Affected versions

>= 4.0.0, < 4.3.1
< 3.1.48

Patched versions

4.3.1
3.1.48

Description

Impact

An attacker could exploit this vulnerability to execute arbitrary JavaScript code in the context of the user's browser session. This may lead to unauthorized access to sensitive user data, manipulation of the web application's behavior, or unauthorized actions performed on behalf of the user.

Patches

Please upgrade to the most recent version of Smarty v3 or v4.

For more information

If you have any questions or comments about this advisory please open an issue in the Smarty repo

References

@wisskid wisskid published to smarty-php/smarty Mar 28, 2023
Published by the National Vulnerability Database Mar 28, 2023
Published to the GitHub Advisory Database Mar 29, 2023
Reviewed Mar 29, 2023
Last updated Feb 1, 2024

Severity

High

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
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

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:N/UI:R/S:C/C:L/I:L/A:L

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(58th percentile)

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2023-28447

GHSA ID

GHSA-7j98-h7fp-4vwj

Source code

Credits

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