# CVE-2020-15721: Cross-site Scripting in RosarioSIS

> Cross-site scripting vulnerability in RosarioSIS allows attackers to inject malicious scripts via href attributes, potentially leading to session hijacking or code execution.

- **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:** Yes
- **Published:** 14 Jul 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-6vc5-v7hw-h5h2

## What is CVE-2020-15721?

CVE-2020-15721 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 Jul 2020. 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

RosarioSIS through 6.8-beta allows modules/Custom/NotifyParents.php XSS because of the href attributes for AddStudents.php and User.php.

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

## Which versions are affected by CVE-2020-15721?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `francoisjacquet/rosariosis` | Packagist | All versions | 6.8 |
| `francoisjacquet/rosariosis` | Packagist | All versions | 6.8 |

Products: Rosariosis Rosariosis.

## How do I fix CVE-2020-15721?

Upgrade francoisjacquet/rosariosis to 6.8 or later.

## Is CVE-2020-15721 being exploited?

There is no known exploitation of CVE-2020-15721 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-44567](https://insights.sbomify.com/CVE-2021-44567/): SQL injection in francoisjacquet/rosariosis (critical 9.8)
- [CVE-2021-44427](https://insights.sbomify.com/CVE-2021-44427/): SQL Injection in rosariosis (critical 9.8)
- [CVE-2022-2036](https://insights.sbomify.com/CVE-2022-2036/): Cross-site Scripting (XSS) - Stored in francoisjacquet/rosariosis (critical 9.0)
- [CVE-2022-2067](https://insights.sbomify.com/CVE-2022-2067/): SQL Injection in francoisjacquet/rosariosis (high 8.8)
- [CVE-2022-1997](https://insights.sbomify.com/CVE-2022-1997/): Cross-site Scripting (XSS) - Stored in francoisjacquet/rosariosis (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-15721 and fix it if it is affected.

What it is: CVE-2020-15721 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 Jul 2020. 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-2020-15721 in the wild and no public exploit code.

Affected packages and fixed versions:
- francoisjacquet/rosariosis (Packagist): affected all versions; fixed in 6.8
- francoisjacquet/rosariosis (Packagist): affected all versions; fixed in 6.8

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-2020-15721/ (Markdown: https://insights.sbomify.com/CVE-2020-15721/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-15721
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-15721
- OSV: https://osv.dev/vulnerability/CVE-2020-15721

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-15721/
Summaries are generated and may contain mistakes; the official description above is the record.