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CVE-2022-28470

24
FAUCET Score

CVE-2022-28470 describes a critical code-execution backdoor present in versions 0.1 through 0.13 of the "marcador" package on PyPI. With a CVSS score of 9.8, this vulnerability allows for unauthenticated remote code execution with high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the severe nature of the backdoor warrants immediate attention for affected Python projects.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.1, <= 0.13CPE matchmatch criteria
cpe:2.3:a:python:pypi:*:*:*:*:*:*:*:*

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
2.12%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0212 is in the 69th percentile among its peer group of 36,835 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: marcadorFixed in: 0.14

Vendor Advisories (1)

pipGHSA-57qv-h9m7-jxfgcritical

Code-execution backdoor in marcador

May 9, 2022

References

pypi.doubanio.com / simple/request
Third Party Advisory
github.com / joajfreitas/marcador/issues/5
ExploitIssue TrackingThird Party Advisory
pypi.org / project/marcador
Product