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Vulnerabilities

Vulnerability · CVE-2023-53905

ProjectSend r1605 contains a CSV injection vulnerability that allows authenticated users to inject malicious formulas into user profile names.

Published Dec 17, 2025 · catalog updated Apr 7, 2026 · ProjectSend

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2023-53905. EPSS is 0.50%. Act only if a listed version of ProjectSend is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.50%
Remediation
Vendor / distro source
Affected products
vendor projectsend ProjectSend r1605

ProjectSend r1605 contains a CSV injection vulnerability that allows authenticated users to inject malicious formulas into user profile names. Attackers can craft payloads like =calc|a!z| in the name field to trigger code execution when administrators export action logs as CSV files.

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 projectsend ProjectSend r1605r1605

How to fix CVE-2023-53905

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-2023-53905. EPSS is 0.50%. Act only if a listed version of ProjectSend is installed.

Which versions are affected?

Compare what you have installed with projectsend ProjectSend r1605 r1605. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.50%. 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. Dec 17, 2025 · EUVD

    Detected

    ProjectSend r1605 contains a CSV injection vulnerability that allows authenticated users to inject malicious formulas into user profile names. Attackers can craft payloads like =calc|a!z| in the name field to trigger code execution when administrators export action logs as CSV files.

  2. Apr 7, 2026 · EUVD

    Updated

    ProjectSend r1605 contains a CSV injection vulnerability that allows authenticated users to inject malicious formulas into user profile names. Attackers can craft payloads like =calc|a!z| in the name field to trigger code execution when administrators export action logs as CSV files.

Sources

  • CVE.orgVulnerability recordCVE-2023-53905

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-53905

    30-day exploitation probability 0.50%

    first.org
  • EUVDVulnerability recordEUVD-2023-60225

    ProjectSend r1605 contains a CSV injection vulnerability that allows authenticated users to inject malicious formulas into user profile names. Attackers can craft payloads like =calc|a!z| in the name field to trigger code execution when administrators export action logs as CSV fi

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 2, 2026
  • CVE.orgOct 30, 2026
  • EUVDOct 30, 2026