CVE-2022-28888Public exploitNetwork attack vector

Unauthenticated code execution via predictable fragment secret

Published Jul 13, 2022 · Updated Feb 13, 2025

Remote code execution in Spryker Commerce OS with spryker/http before 1.7.0 allows remote attackers to execute arbitrary OS commands. HttpConfig derives the _fragment signing secret from md5(DIR), letting attackers predict a valid signature and invoke Filesystem::appendToFile to place PHP code in a served file. Default configurations expose signature verification without authentication; successful exploitation grants arbitrary file writes and OS-level command execution.

CVSS severity9.8
Critical
EPSS probability4.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Remote code execution in Spryker Commerce OS with spryker/http before 1.7.0 allows remote attackers to execute arbitrary OS commands. HttpConfig derives the _fragment signing secret from md5(DIR), letting attackers predict a valid signature and invoke Filesystem::appendToFile to place PHP code in a served file. Default configurations expose signature verification without authentication; successful exploitation grants arbitrary file writes and OS-level command execution.

The record

CVE
CVE-2022-28888
Published
Jul 13, 2022
Updated
Feb 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo