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CVE-2022-0748

30
FAUCET Score

CVE-2022-0748 is a critical arbitrary code execution vulnerability affecting the 'post-loader' package (version 0.0.0). It arises from the unsafe handling of markdown input, allowing embedded JavaScript to be executed. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code, the vulnerability has garnered significant community discussion, indicating awareness and potential future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.0CPE matchmatch criteria
cpe:2.3:a:post-loader_project:post-loader:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.96%
Probability of exploitation in next 30 days
EPSS Percentile
78.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0196 is in the 67th percentile among its peer group of 36,829 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

Vendor Advisories (1)

npmGHSA-66ww-999q-mffqcritical

Arbitrary code execution in post-loader

Mar 18, 2022

References

snyk.io / vuln/SNYK-JS-POSTLOADER-2403737
ExploitThird Party Advisory