# CVE-2022-29894: Cross-site Scripting in Strapi

> Stored XSS in Strapi file upload allows attackers to execute scripts in admin browsers, potentially leading to account takeover.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 13 Jun 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-mcqm-6ff4-53qx

## What is CVE-2022-29894?

CVE-2022-29894 is a medium-severity cross-site scripting vulnerability in Strapi, published on 13 Jun 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Strapi v3.x.x versions and earlier contain a stored cross-site scripting vulnerability in file upload function. By exploiting this vulnerability, an arbitrary script may be executed on the web browser of the user who is logging in to the product with the administrative privilege.

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

## Which versions are affected by CVE-2022-29894?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `strapi` | npm | All versions to 3.6.10 | None |
| `strapi` | npm | All versions to 3.6.10 | None |

Products: Strapi Strapi.

## How do I fix CVE-2022-29894?

No fix has been published for CVE-2022-29894 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-29894 being exploited?

There is no known exploitation of CVE-2022-29894 in the wild and no public exploit code.

## Other vulnerabilities in Strapi

- [CVE-2023-22894](https://insights.sbomify.com/CVE-2023-22894/): Strapi Cleartext Storage of Sensitive Information (high 7.2, exploited in the wild)
- [CVE-2023-22621](https://insights.sbomify.com/CVE-2023-22621/): Strapi plugins vulnerable to Server-Side Template Injection and Remote Code Execution in the Users-Permissions Plugin (critical 10.0)
- [CVE-2022-27263](https://insights.sbomify.com/CVE-2022-27263/): Unrestricted Upload of File with Dangerous Type in Strapi (critical 9.8)
- [CVE-2020-27664](https://insights.sbomify.com/CVE-2020-27664/): Authorization bypass in Strapi (critical 9.8)
- [CVE-2019-18818](https://insights.sbomify.com/CVE-2019-18818/): Strapi allows unauthenticated attacker to reset admin password without valid reset token (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-29894 and fix it if it is affected.

What it is: CVE-2022-29894 is a medium-severity cross-site scripting vulnerability in Strapi, published on 13 Jun 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-29894 in the wild and no public exploit code.

Affected packages and fixed versions:
- strapi (npm): affected all versions up to 3.6.10; no fix listed
- strapi (npm): affected all versions up to 3.6.10; 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-2022-29894/ (Markdown: https://insights.sbomify.com/CVE-2022-29894/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-29894
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-29894
- OSV: https://osv.dev/vulnerability/CVE-2022-29894

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-29894/
Summaries are generated and may contain mistakes; the official description above is the record.