CVE-2026-53950

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H                                    

Vulnerability 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.

Vulnerability Details

Published Date

June 24, 2026

Last Modified

June 24, 2026

CWE ID

CWE-79

Source

NVD

Vendor

TryGhost

Product

Ghost

External References

https://github.com/TryGhost/Ghost/security/advisories/GHSA-xpp7-93x6-v29m

CVSS Score & Metrics

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