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Vulnerabilities

Vulnerability · CVE-2021-47819

ProjeQtOr Project Management 9.1.4 contains a file upload vulnerability that allows guest users to upload malicious PHP files with arbitrary code execution capabilities.

Published Jan 15, 2026 · catalog updated Mar 5, 2026 · Projeqtor ProjeQtOr Project Management

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2021-47819. EPSS is 0.44%. Act only if a listed version of Projeqtor ProjeQtOr Project Management is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.44%
Remediation
Vendor / distro source
Affected products
vendor Projeqtor ProjeQtOr Project Management 9.1.4

ProjeQtOr Project Management 9.1.4 contains a file upload vulnerability that allows guest users to upload malicious PHP files with arbitrary code execution capabilities. Attackers can upload a PHP script through the profile attachment section and execute system commands by accessing the uploaded file with a specially crafted request parameter.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Projeqtor ProjeQtOr Project Management 9.1.49.1.4

How to fix CVE-2021-47819

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2021-47819. EPSS is 0.44%. Act only if a listed version of Projeqtor ProjeQtOr Project Management is installed.

Which versions are affected?

Compare what you have installed with Projeqtor ProjeQtOr Project Management 9.1.4 9.1.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.44%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 15, 2026 · EUVD

    Detected

    ProjeQtOr Project Management 9.1.4 contains a file upload vulnerability that allows guest users to upload malicious PHP files with arbitrary code execution capabilities. Attackers can upload a PHP script through the profile attachment section and execute system commands by accessing the uploaded file with a specially crafted request parameter.

  2. Mar 5, 2026 · EUVD

    Updated

    ProjeQtOr Project Management 9.1.4 contains a file upload vulnerability that allows guest users to upload malicious PHP files with arbitrary code execution capabilities. Attackers can upload a PHP script through the profile attachment section and execute system commands by accessing the uploaded file with a specially crafted request parameter.

Sources

  • CVE.orgVulnerability recordCVE-2021-47819

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-47819

    30-day exploitation probability 0.44%

    first.org
  • EUVDVulnerability recordEUVD-2026-2750

    ProjeQtOr Project Management 9.1.4 contains a file upload vulnerability that allows guest users to upload malicious PHP files with arbitrary code execution capabilities. Attackers can upload a PHP script through the profile attachment section and execute system commands by access

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 5, 2026
  • EUVDNov 2, 2026
  • CVE.orgOct 30, 2026