# CVE-2023-24810: Cross site scripting (XSS) vulnerability using authentication callback in Misskey

> Attackers can execute arbitrary JavaScript via malicious redirect URLs during authentication, potentially compromising user accounts.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L`)
- **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:** 22 Feb 2023
- **Updated:** 10 Mar 2025
- **Also known as:** GHSA-cc6r-chgr-8r5m

## What is CVE-2023-24810?

CVE-2023-24810 is a high-severity cross-site scripting vulnerability in misskey-dev misskey, published on 22 Feb 2023. 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

Misskey is an open source, decentralized social media platform. Due to insufficient validation of the redirect URL during `miauth` authentication in Misskey, arbitrary JavaScript can be executed when a user allows the link. All versions below 13.3.1 (including 12.x) are affected. This has been fixed in version 13.3.1. Users are advised to upgrade. Users unable to upgrade should not allow authentication of untrusted apps.

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

## Which versions are affected by CVE-2023-24810?

It affects 1 product.


Products: Misskey Misskey.

## How do I fix CVE-2023-24810?

No fix has been published for CVE-2023-24810 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-24810 being exploited?

There is no known exploitation of CVE-2023-24810 in the wild and no public exploit code.

## Other vulnerabilities in misskey-dev misskey

- [CVE-2025-25306](https://insights.sbomify.com/CVE-2025-25306/): Misskey's Incomplete Patch of CVE-2024-52591 Leads to Forgery of Federated Notes (critical 9.3)
- [CVE-2023-49079](https://insights.sbomify.com/CVE-2023-49079/): Misskey's missing signature validation allows arbitrary users to impersonate any remote user. (critical 9.3)
- [CVE-2026-28431](https://insights.sbomify.com/CVE-2026-28431/): Misskey lacks proper authorization checks and input validation (critical 9.2)
- [CVE-2023-52139](https://insights.sbomify.com/CVE-2023-52139/): Misskey vulnerable to improper authorization when accessing with third-party application (critical 9.1)
- [CVE-2024-52590](https://insights.sbomify.com/CVE-2024-52590/): Missing validation allows spoofed profiles in Misskey (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-24810 and fix it if it is affected.

What it is: CVE-2023-24810 is a high-severity cross-site scripting vulnerability in misskey-dev misskey, published on 22 Feb 2023. 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-2023-24810 in the wild and no public exploit code.

Affected product: misskey-dev misskey. 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-2023-24810/ (Markdown: https://insights.sbomify.com/CVE-2023-24810/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-24810
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-24810
- OSV: https://osv.dev/vulnerability/CVE-2023-24810

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-24810/
Summaries are generated and may contain mistakes; the official description above is the record.