GHSA-xpp7-93x6-v29m
XSS in Ghost's ActivityPub client
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @tryghost/activitypub | < 3.1.0 | 3.1.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
The ActivityPub client in Ghost was vulnerable to JavaScript injection on posts shared by a maliciously customised ActivityPub server.
### Vulnerable Versions
This vulnerability is present in the @tryghost/activitypub package up to v3.0.8. All prior versions are also affected.
### Patches
@tryghost/activitypub v3.1.0 contains a fix for this issue and is also automatically fetched by Ghost.
### References
Ghost thanks Brad Geesaman, Ghost Security for disclosing this vulnerability responsibly.
### For more information
If you have any questions or comments about this advisory, email Ghost at [[email protected]](mailto:[email protected]).
References
External links from the advisory. They lead to third-party sites.