CVE-2026-21449CWE-1336

Bagisto has SSTI via first and last name from low-privilege user (not admin)

High · published January 2, 2026

CVSS v4.0
7.4
EPSS
1%
Percentile
42.6
In the wild
Unconfirmed
What it is

⚡ A sneaky server-side template injection just waiting for the right name! If a low-privileged user inputs a crafty first or last name, it could spell trouble for your Bagisto installation before version 2.3.10. 😱 Think of it like a restaurant where anyone can place a special request that the chef never double-checks. If a mischievous customer sends in a coded message as their name, they could manipulate the menu and serve up a dish nobody wanted! An attacker could exploit this vulnerability to execute arbitrary code on the server, ultimately gaining full control over the eCommerce platform. This could lead to data breaches, unauthorized access to sensitive customer information, and even a complete site compromise—absolutely devastating for any online business!

Put simply

Think of it like a restaurant where anyone can place a special request that the chef never double-checks. If a mischievous customer sends in a coded message as their name, they could manipulate the menu and serve up a dish nobody wanted! This vulnerability in Bagisto arises from improper handling of user inputs in server-side templates, allowing unauthorized users to inject and execute code through seemingly harmless name fields.

What to do

An attacker could exploit this vulnerability to execute arbitrary code on the server, ultimately gaining full control over the eCommerce platform. This could lead to data breaches, unauthorized access to sensitive customer information, and even a complete site compromise—absolutely devastating for any online business! Immediate action is required! Upgrade your Bagisto installation to version 2.3.10 or later to resolve this vulnerability. Additionally, implement strict input validation to ensure only safe data is processed. 🛡️ You’ve got this! Stay proactive and secure your eCommerce platform today! 🚀

The record
Technical detail
CVSS v4.0
7.4 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.00509 · 42.6th percentile
Weakness
CWE-1336 · Improper Neutralization of Special Elements Used in a Template Engine
Published
2026-01-02T20:35Z
EPSS history
Timeline
  • 02 JAN 20:35Z
    Bagisto has SSTI via first and last name from low-privilege user (not admin)
    cvelistv5