# CVE-2020-28456: Cross-site Scripting (XSS)

> Attackers can inject malicious scripts into the S-Cart admin panel, potentially leading to session hijacking or unauthorized actions.

- **Severity:** High 7.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Dec 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-c6vf-v2c4-qvvh, SNYK-PHP-SCARTCORE-1047609

## What is CVE-2020-28456?

CVE-2020-28456 is a high-severity cross-site scripting vulnerability in s-cart/core, published on 15 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The package s-cart/core before 4.4 are vulnerable to Cross-site Scripting (XSS) via the admin panel.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2020-28456?

It affects 1 product.


Products: S-Cart S-Cart.

## How do I fix CVE-2020-28456?

No fix has been published for CVE-2020-28456 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-28456 being exploited?

There is no known exploitation of CVE-2020-28456 in the wild and no public exploit code.

## Other vulnerabilities in s-cart/core

- [CVE-2021-38847](https://insights.sbomify.com/CVE-2021-38847/): File upload in n/a (high 8.8)
- [CVE-2020-28457](https://insights.sbomify.com/CVE-2020-28457/): Cross-site Scripting (XSS) (high 7.2)
- [CVE-2022-21149](https://insights.sbomify.com/CVE-2022-21149/): Cross-site Scripting (XSS) (medium 5.4)
- [CVE-2021-44111](https://insights.sbomify.com/CVE-2021-44111/): Path Traversal in S-Cart (medium 4.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-28456 and fix it if it is affected.

What it is: CVE-2020-28456 is a high-severity cross-site scripting vulnerability in s-cart/core, published on 15 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-28456 in the wild and no public exploit code.

Affected product: s-cart/core. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2020-28456/ (Markdown: https://insights.sbomify.com/CVE-2020-28456/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-28456
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-28456
- OSV: https://osv.dev/vulnerability/CVE-2020-28456

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-28456/
Summaries are generated and may contain mistakes; the official description above is the record.