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CVE-2023-28447

Cross site scripting vulnerability in Javascript escaping in smarty/smarty

Published: Mar 28, 2023Updated: Nov 3, 2025 Sources: CVE List NVD GHSACWE-79
NVD MITRE
7.1CVSSHIGH
EPSS Score
1.0%
Top 41.2%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

Smarty is a template engine for PHP. In affected versions smarty did not properly escape javascript code. 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. Users are advised to upgrade to either version 3.1.48 or to 4.3.1 to resolve this issue. There are no known workarounds for this vulnerability.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

smartysmarty-php
Library
OSS Libraries / generic-library
smartysmarty
Library
OSS Libraries / generic-library
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
smarty/smartyPackagistOSS Libraries
smarty-phposs-projectOSS Librariesaka smarty-php, smarty
smartyoss-projectOSS Librariesaka smarty template engine, smarty
fedoraprojectoss-projectUSOperating Systemsaka fedora project
packagistpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/smarty-php/smarty/security/advisories/GHSA-7j98-h7fp-4vwj
github.com
https://github.com/smarty-php/smarty/commit/685662466f653597428966d75a661073104d713d
github.com
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HSAUM3YHWHO4UCJXRGRLQGPJAO3MFOZZ/
lists.fedoraproject.org
and 9 more references View all →

Timeline

Published
Mar 28, 2023
Last Updated
Nov 3, 2025

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