# Ghost: Paid gift memberships obtainable at minimal cost via the donations feature

Advisory record · `GHSA-xm43-3m56-w3wf`

- **Identifiers:** `GHSA-xm43-3m56-w3wf` · `BIT-ghost-2026-59817` · `CVE-2026-59817`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-472](https://cwe.mitre.org/data/definitions/472.html) · [CWE-639](https://cwe.mitre.org/data/definitions/639.html)
- **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md) · [CWE-472](https://agentprime.io/advisories/tag/cwe-472.md)
- **Published:** 4 Aug 2026
- **Updated:** 4 Aug 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 4 Aug 2026, 21:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `ghost` (npm): affected `>=6.27.0, <6.44.0`; fixed in `6.44.0`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0040, the 34th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 4 Aug 2026. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-xm43-3m56-w3wf](https://github.com/advisories/GHSA-xm43-3m56-w3wf)
- [OSV: GHSA-xm43-3m56-w3wf](https://osv.dev/vulnerability/GHSA-xm43-3m56-w3wf)
- <https://github.com/TryGhost/Ghost/security/advisories/GHSA-xm43-3m56-w3wf>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-59817>
- <https://github.com/TryGhost/Ghost/pull/28351>
- <https://github.com/TryGhost/Ghost/pull/28352>
- <https://github.com/TryGhost/Ghost/commit/cab716cd015ac04b7ee50c7a405478d97bc7b1e0>
- <https://github.com/TryGhost/Ghost/commit/ee7b991b466a7849c70f9d1caed8e491ee4113c6>
- <https://github.com/TryGhost/Ghost>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-xm43-3m56-w3wf>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-xm43-3m56-w3wf/>. Everything for agents: <https://agentprime.io/llms.txt>.