CVE-2026-24778: Ghost is an open source content management system

Q: How do I fix CVE-2026-24778?

ghost: upgrade to 5.121.0, 6.15.0; portal: upgrade to 2.51.5, 2.57.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-24778 being exploited?

CVE-2026-24778 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-24778 affect?

CVE-2026-24778 affects ghost, portal. Severity is high (CVSS 8.8). 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

Routine

HIGH 8.8UPGRADEUPGRADE

CVE-2026-24778 is a high-severity flaw (CVSS 8.8) affecting ghost, portal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-01-27
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: ghost

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-27 22:15 UTCPublished CVE record published
2026-06-17 10:23 UTCUpdated Record last modified

ghost ghost UPGRADE

Affected: >= 5.43.0 and < 5.121.0 · >= 6.0.0 and < 6.15.0

Fixed in: 5.121.0, 6.15.0

Safe to downgrade to: a release before 5.43.0

1. Check installed version

npm ls ghost

2. UPGRADE to 5.121.0

npm install ghost@">=5.121.0"

3. If no update is available yet, DOWNGRADE to a release before 5.43.0

npm view ghost versions npm install ghost@"<5.43.0"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

ghost portal UPGRADE

Affected: >= 2.29.1 and < 2.51.5 · >= 2.52.0 and < 2.57.1

Fixed in: 2.51.5, 2.57.1

Safe to downgrade to: a release before 2.29.1

1. Check installed version

npm ls portal

2. UPGRADE to 2.51.5

npm install portal@">=2.51.5"

3. If no update is available yet, DOWNGRADE to a release before 2.29.1

npm view portal versions npm install portal@"<2.29.1"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-24778?

ghost: upgrade to 5.121.0, 6.15.0; portal: upgrade to 2.51.5, 2.57.1. Exact commands for each OS are on this page.

Is CVE-2026-24778 being exploited?

CVE-2026-24778 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-24778 affect?

CVE-2026-24778 affects ghost, portal. Severity is high (CVSS 8.8). 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

How urgent is CVE-2026-24778?

Priority 36/100. High severity

Related CVEs

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CVE-2026-26980 CRITICAL 9.4 UPGRADE Ghost is a Node.js content management system
CVE-2024-43409 MEDIUM 6.5 UPGRADE Ghost is a Node.js content management system
CVE-2024-34451 CRITICAL 9.1 UPGRADE Ghost through 5.85.1 allows remote attackers to bypass an authentication rate-limit protection mechanism by us

References

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