Which products and versions are affected by CVE-2022-0557?

Affected: Microweber; microweber/microweber (composer) versions >= unspecified. The full list is in the CVE brief.

Is CVE-2022-0557 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2022-0557 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2022-0557?

Public exploit code is available.

Is there a fix for CVE-2022-0557?

Fixed versions are available, including Microweber 1.2.11, microweber/microweber 1.2.11.

How urgently should CVE-2022-0557 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2022-0557

HighPublic exploit

OS Command Injection in Microweber

Published Feb 12, 2022 · Updated Aug 12, 2026 · Also known as GHSA-vm37-j55j-8655

Key Facts

Patch immediately

CVE-2022-0557 is a high-severity vulnerability (CVSS 7.2 v3.1) affecting Microweber, microweber/microweber (composer).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 51% probability of exploitation in the next 30 days.
Fixed versions are available, including Microweber 1.2.11, microweber/microweber 1.2.11.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

7.2

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

EPSS (30-day exploit likelihood)

51%

Higher than 98.9% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2022-0557 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

OS Command Injection in Packagist microweber/microweber prior to 1.2.11.

Affected Products

3 affected entries in total

Product	Affected versions	Fixed in
MicroweberMicroweber	See advisory	1.2.11
microweber/microwebercomposer	>= unspecified	1.2.11

Patched Releases

Microweber

1.2.11

microweber/microweber

1.2.11

Timeline

Publicly disclosed
Feb 12, 2022
Last updated
Aug 12, 2026

Weakness Type

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

References

3 more references in the full CVE brief

FAQ

Common Questions.

OS Command Injection in Packagist microweber/microweber prior to 1.2.11.
Affected: Microweber; microweber/microweber (composer) versions >= unspecified. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Microweber 1.2.11, microweber/microweber 1.2.11.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2022-0557 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.