# CVE-2020-23761: subrion CMS Cross Site Scripting (XSS) vulnerability

> Remote attackers can execute arbitrary web scripts via the payment gateway column in Subrion CMS transactions tab.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Apr 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-xhc3-5pgf-p576

## What is CVE-2020-23761?

CVE-2020-23761 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Apr 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Cross Site Scripting (XSS) vulnerability in subrion CMS Version <= 4.2.1 allows remote attackers to execute arbitrary web script via the "payment gateway" column on transactions tab.

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

## Which versions are affected by CVE-2020-23761?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `intelliants/subrion` | Packagist | All versions to 4.2.1 | None |
| `intelliants/subrion` | Packagist | All versions to 4.2.1 | None |

Products: Intelliants Subrion.

## How do I fix CVE-2020-23761?

No fix has been published for CVE-2020-23761 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-23761 being exploited?

There is no known exploitation of CVE-2020-23761 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2024-25400](https://insights.sbomify.com/CVE-2024-25400/): SQL injection in n/a (critical 9.8)
- [CVE-2020-18155](https://insights.sbomify.com/CVE-2020-18155/): SQL Injection in Subrion CMS (critical 9.8)
- [CVE-2017-5543](https://insights.sbomify.com/CVE-2017-5543/): Subrion CMS PHP Object Injection (critical 9.8)
- [CVE-2023-46947](https://insights.sbomify.com/CVE-2023-46947/): Subrion remote command execution vulnerability (high 8.8)
- [CVE-2018-21037](https://insights.sbomify.com/CVE-2018-21037/): Subrion CMS CSRF Vulnerability (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-23761 and fix it if it is affected.

What it is: CVE-2020-23761 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Apr 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-23761 in the wild and no public exploit code.

Affected packages and fixed versions:
- intelliants/subrion (Packagist): affected all versions up to 4.2.1; no fix listed
- intelliants/subrion (Packagist): affected all versions up to 4.2.1; no fix listed

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-2020-23761/ (Markdown: https://insights.sbomify.com/CVE-2020-23761/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-23761
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-23761
- OSV: https://osv.dev/vulnerability/CVE-2020-23761

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-23761/
Summaries are generated and may contain mistakes; the official description above is the record.