CVE-2026-53950
@tryghost/activitypub: XSS in Ghost's ActivityPub client
Description
@tryghost/activitypub is Ghost’s social/federation client app. Prior to 3.1.0, the ActivityPub client in Ghost was vulnerable to JavaScript injection on posts shared by a maliciously customised ActivityPub server. This vulnerability is fixed in 3.1.0.
INFO
Published Date :
June 24, 2026, 6:04 p.m.
Last Modified :
June 24, 2026, 6:04 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-53950
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update to Ghost version 3.1.0.
- Apply security patches for @tryghost/activitypub.
- Ensure ActivityPub client is up to date.
- Monitor shared posts for malicious content.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53950 vulnerability anywhere in the article.