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CVE-2024-34451

25
FAUCET Score

CVE-2024-34451 is a critical authentication bypass vulnerability affecting Ghost through version 5.85.1, allowing remote attackers to circumvent rate-limiting by manipulating X-Forwarded-For headers. With a CVSS score of 9.1, this network-exploitable flaw has low attack complexity and could lead to high impact on confidentiality and integrity. While no active exploits, public exploit code, or significant community discussion have been observed, the vendor advises using a reverse proxy to filter X-Forwarded-For headers.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.85.1CPE matchmatch criteria
cpe:2.3:a:ghost:ghost:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.77%
Probability of exploitation in next 30 days
EPSS Percentile
51.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0077 is in the 35th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.google.com / document/d/1iy0X4Vc9xXYoBxFrcW6ATo8GKPV6ivuLVzn6GgEpwqE
Exploit
ghost.org / docs/faq/proxying-https-infinite-loops
Product
github.com / TryGhost/Ghost/releases
Product