How severe is CVE-2023-53905?

CVE-2023-53905 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-53905 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-53905?

CVE-2023-53905 affects Projectsend. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-53905?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-53905 have an EU (EUVD) identifier?

Yes. CVE-2023-53905 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60225.

When was CVE-2023-53905 published?

CVE-2023-53905 was published on 2025-12-17 and last updated on 2026-06-17.

CVE-2023-53905

CVE-2023-53905 is a high-severity vulnerability in Projectsend with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1236.

Key facts

Severity: High (CVSS 3.x base score 8.0)
CVSS v4: 6.2
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-60225
Weakness: CWE-1236
Affected product: Projectsend
Published: 2025-12-17
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-53905?: 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.
How severe is CVE-2023-53905?: CVE-2023-53905 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-53905 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-53905?: CVE-2023-53905 affects Projectsend. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-53905?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-53905 have an EU (EUVD) identifier?: Yes. CVE-2023-53905 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60225.
When was CVE-2023-53905 published?: CVE-2023-53905 was published on 2025-12-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:projectsend:projectsend:r1605:*:*:*:*:*:*:*

More vulnerabilities in Projectsend

CVE-2023-53980 — Critical (CVSS 9.8): ProjectSend r1605 contains a remote code execution vulnerability that allows attackers to upload malicious files by…
CVE-2024-11680 — Critical (CVSS 9.8): ProjectSend versions prior to r1720 are affected by an improper authentication vulnerability. Remote, unauthenticated…
CVE-2021-40887 — Critical (CVSS 9.8): Projectsend version r1295 is affected by a directory traversal vulnerability. Because of lacking sanitization input for…
CVE-2016-10734 — Critical (CVSS 9.8): ProjectSend (formerly cFTP) r582 allows Insecure Direct Object Reference via includes/actions.log.export.php.
CVE-2016-10733 — Critical (CVSS 9.8): ProjectSend (formerly cFTP) r582 allows directory traversal via file=../ in the process-zip-download.php query string.
CVE-2016-10732 — Critical (CVSS 9.8): ProjectSend (formerly cFTP) r582 allows authentication bypass via a direct request for users.php, home.php,…

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