CVE-2021-44087Public exploitNetwork attack vector

Unauthenticated code execution via unrestricted photo upload

Published Mar 17, 2022 · Updated Jul 9, 2026

Remote code execution in SourceCodester Attendance and Payroll System 1.0 allows remote attackers to execute PHP without authentication. The employee_edit_photo.php endpoint accepts a multipart photo named shell.php and stores it unchanged in the web-served images directory. Requesting the uploaded script executes commands with the web server process's privileges.

CVSS severity9.8
Critical
EPSS probability4.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in SourceCodester Attendance and Payroll System 1.0 allows remote attackers to execute PHP without authentication. The employee_edit_photo.php endpoint accepts a multipart photo named shell.php and stores it unchanged in the web-served images directory. Requesting the uploaded script executes commands with the web server process's privileges.

The record

CVE
CVE-2021-44087
Published
Mar 17, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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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.

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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

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

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Your stack

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