Cross site scripting vulnerability in Javascript escaping in smarty/smarty
CVE-2023-28447

7.1HIGH

Key Information:

Vendor

Smarty-PHP

Status
Smarty
Vendor
CVE Published:
28 March 2023

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-28447?

The Smarty template engine for PHP has a vulnerability that allows an attacker to inject and execute arbitrary JavaScript code due to improper escaping. This leads to potential unauthorized access to sensitive user information and manipulation of the application's operations within the user's browser context. To mitigate this risk, users are strongly advised to upgrade to Smarty version 3.1.48 or 4.3.1, as there are no known workarounds available.

Affected Version(s)

smarty >= 4.0.0, < 4.3.1 < 4.0.0, 4.3.1

smarty < 3.1.48 < 3.1.48

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

lblfixer_cve_2023_28447
Created by drkbcn

References

https://github.com/smarty-php/smarty/security/advisories/...
x_refsource_CONFIRM
https://github.com/smarty-php/smarty/commit/685662466f653...
x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-ann...

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.