# CVE-2026-104414: Ghost from 2.5.0 before 6.64.0 Stored XSS via oEmbed Photo Responses

> Attackers can inject malicious scripts via oEmbed photo responses, compromising admin sessions in the Ghost CMS.

- **Severity:** High 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA: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:** 2 Oct 2026
- **Updated:** 2 Oct 2026
- **Also known as:** GHSA-7wpv-mphg-4gmw, MINI-3c9r-g4g3-p88j

## What is CVE-2026-104414?

CVE-2026-104414 is a high-severity cross-site scripting vulnerability in TryGhost Ghost, published on 2 Oct 2026. 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

Ghost from 2.5.0 before 6.64.0 contains a stored cross-site scripting vulnerability that allows attackers to inject untrusted scripts into post content via oEmbed photo responses. Attackers can host malicious oEmbed photo responses so that embedding their URL stores scripts that run in the Ghost editor, published site, and newsletter emails, compromising staff admin sessions.

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

## Which versions are affected by CVE-2026-104414?


## How do I fix CVE-2026-104414?

Upgrade to a fixed version.

## Is CVE-2026-104414 being exploited?

There is no known exploitation of CVE-2026-104414 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-104414 and fix it if it is affected.

What it is: CVE-2026-104414 is a high-severity cross-site scripting vulnerability in TryGhost Ghost, published on 2 Oct 2026. 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-2026-104414 in the wild and no public exploit code.

Affected product: TryGhost Ghost. 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-2026-104414/ (Markdown: https://insights.sbomify.com/CVE-2026-104414/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-104414
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-104414
- OSV: https://osv.dev/vulnerability/CVE-2026-104414

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-104414/
Summaries are generated and may contain mistakes; the official description above is the record.