8.8

CVE-2026-24778: ghost Cross-site Scripting

CVSS: 8.8v3.1HighAnalyzed
AliasesGHSA-gv6q-2m97-882hBIT-ghost-2026-24778
Published 27-01-2026Last modified 28-01-2026
Open JSON

Vulnerability summary

CVE-2026-24778 is a high (CVSS 8.8) Cross-site Scripting vulnerability in ghost. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.4% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-01-2026
    PublishedVulnerability first disclosed.
  2. 28-01-2026
    Last modifiedVulnerability information updated.

Description

Ghost is an open source content management system. In Ghost versions 5.43.0 through 5.12.04 and 6.0.0 through 6.14.0, an attacker was able to craft a malicious link that, when accessed by an authenticated staff user or member, would execute JavaScript with the victim's permissions, potentially leading to account takeover. Ghost Portal versions 2.29.1 through 2.51.4 and 2.52.0 through 2.57.0 were vulnerable to this issue. Ghost automatically loads the latest patch of the members Portal component via CDN. For Ghost 5.x users, upgrading to v5.121.0 or later fixes the vulnerability. v5.121.0 loads Portal v2.51.5, which contains the patch. For Ghost 6.x users, upgrading to v6.15.0 or later fixes the vulnerability. v6.15.0 loads Portal v2.57.1, which contains the patch. For Ghost installations using a customized or self-hosted version of Portal, it will be necessary to manually rebuild from or update to the latest patch version.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

+0.02 pp

From 0.27% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ghost2 products
  • ghost≥ 5.43.0, < 5.121.0 | ≥ 6.0.0, < 6.15.0
  • portal≥ 2.29.1, < 2.51.5 | ≥ 2.52.0, < 2.57.1
@tryghost1 product
  • portal≥ 2.29.1, < 2.51.5 | ≥ 2.52.0, < 2.57.1
Npm1 product
  • ghost≥ 5.43.0, < 5.121.0 | ≥ 6.0.0, < 6.15.0
Tryghost1 product
  • ghost@tryghost/portal >= 2.29.1, < 2.51.5 | @tryghost/portal >= 2.52.0, < 2.57.1 | ghost >= 5.43.0, < 5.121.0 | ghost >= 6.0.0, < 6.15.0

4 vendors · 5 products

References

4 links