CVE-2023-31133 — Ghost is an app for new-media creators with tools to build a website, publish co

Ghost is an app for new-media creators with tools to build a website, publish content, send newsletters, and offer paid subscriptions to members. Prior to version 5.46.1, due to a lack of validation when filtering on the public API endpoints, it is possible to reveal private fiel

01What is this vulnerability?

Ghost is an app for new-media creators with tools to build a website, publish content, send newsletters, and offer paid subscriptions to members. Prior to version 5.46.1, due to a lack of validation when filtering on the public API endpoints, it is possible to reveal private fields via a brute force attack.

02Affected products

Vendor	Product	Versions
TryGhost	Ghost	< 5.46.1

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-05-08T20:56:39.299Z
• Last modified: 2025-01-29T14:53:24.054Z

09References

• github.com — https://github.com/TryGhost/Ghost/security/advisories/GHSA-r97q-ghch-82j9
• github.com — https://github.com/TryGhost/Ghost/commit/b3caf16005289cc9909488391b4a26f3f4a66a9…
• github.com — https://github.com/TryGhost/Ghost/releases/tag/v5.46.1