4.8

CVE-2026-70589: tryghost ghost Improper Input Validation

CVSS: 4.8v3.1MediumDeferred
AliasesGHSA-4wx2-7gvj-qfq3BIT-ghost-2026-70589
Published 04-08-2026Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2026-70589 is a medium (CVSS 4.8) Improper Input Validation vulnerability in tryghost ghost. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · +0.10 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-08-2026
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

Ghost is a Node.js content management system. From 4.22.0 until 6.54.1, a missing validation check allowed users to redeem subscription offers that were no longer active. This issue is fixed in version 6.54.1.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

+0.10 pp

From 0.17% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.27%

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

Npm1 product
  • ghost≥ 4.22.0, < 6.54.1
Tryghost1 product
  • ghost≥ 4.22.0, < 6.54.1

2 vendors · 2 products

References

3 links