# CVE-2026-21450: Bagisto has SSTI in parameter that can lead to RCE

> Attackers can achieve remote code execution via server-side template injection in the type parameter of the Bagisto eCommerce platform.

- **Severity:** High 7.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 2 Jan 2026
- **Updated:** 2 Jan 2026
- **Also known as:** GHSA-9hvg-qw5q-wqwp

## What is CVE-2026-21450?

CVE-2026-21450 is a high-severity code injection vulnerability in bagisto, published on 2 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Bagisto is an open source laravel eCommerce platform. Versions prior to 2.3.10 are vulnerable to server-side template injection via type parameter, which can lead to remote code execution or another exploitation. Version 2.3.10 fixes the issue.

Weakness: CWE-1336 (Improper Neutralization of Special Elements Used in a Template Engine)

## Which versions are affected by CVE-2026-21450?

2 open source packages ship an affected version, including bagisto/bagisto. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `bagisto/bagisto` | Packagist | All versions | 2.3.10 |
| `bagisto/bagisto` | Packagist | All versions | 2.3.10 |

Products: Webkul Bagisto.

## How do I fix CVE-2026-21450?

Upgrade bagisto/bagisto to 2.3.10 or later.

## Is CVE-2026-21450 being exploited?

There is no known exploitation of CVE-2026-21450 in the wild and no public exploit code.

## Other vulnerabilities in bagisto

- [CVE-2026-21448](https://insights.sbomify.com/CVE-2026-21448/): Bagisto has Normal & Blind SSTI from low-privilege user when ordering product (high 8.9)
- [CVE-2026-21446](https://insights.sbomify.com/CVE-2026-21446/): Bagisto Missing Authentication on Installer API Endpoints (high 8.8)
- [CVE-2023-36237](https://insights.sbomify.com/CVE-2023-36237/): Bagisto Cross-Site Request Forgery vulnerability (high 8.8)
- [CVE-2023-33570](https://insights.sbomify.com/CVE-2023-33570/): Code injection in n/a (high 8.8)
- [CVE-2019-16403](https://insights.sbomify.com/CVE-2019-16403/): Authorization Bypass Through User-Controlled Key in Bagisto (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-21450 and fix it if it is affected.

What it is: CVE-2026-21450 is a high-severity code injection vulnerability in bagisto, published on 2 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-21450 in the wild and no public exploit code.

Affected packages and fixed versions:
- bagisto/bagisto (Packagist): affected all versions; fixed in 2.3.10
- bagisto/bagisto (Packagist): affected all versions; fixed in 2.3.10

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-21450/ (Markdown: https://insights.sbomify.com/CVE-2026-21450/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-21450
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-21450
- OSV: https://osv.dev/vulnerability/CVE-2026-21450

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-21450/
Summaries are generated and may contain mistakes; the official description above is the record.