How severe is CVE-2023-53906?

CVE-2023-53906 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-53906 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-53906?

CVE-2023-53906 affects Projectsend. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-53906?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-53906 have an EU (EUVD) identifier?

Yes. CVE-2023-53906 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60224.

When was CVE-2023-53906 published?

CVE-2023-53906 was published on 2025-12-17 and last updated on 2026-06-17.

CVE-2023-53906

CVE-2023-53906 is a medium-severity vulnerability in Projectsend with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v4: 5.1
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-60224
Weakness: CWE-79
Affected product: Projectsend
Published: 2025-12-17
Last modified: 2026-06-17

Description

projectSend r1605 contains a stored cross-site scripting vulnerability that allows authenticated administrators to inject malicious JavaScript through the custom assets configuration page. Attackers can craft a JavaScript payload in the custom assets section that will execute when other users load the affected page, enabling persistent script injection.

Frequently asked questions

What is CVE-2023-53906?: projectSend r1605 contains a stored cross-site scripting vulnerability that allows authenticated administrators to inject malicious JavaScript through the custom assets configuration page. Attackers can craft a JavaScript payload in the custom assets section that will execute when other users load the affected page, enabling persistent script injection.
How severe is CVE-2023-53906?: CVE-2023-53906 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-53906 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-53906?: CVE-2023-53906 affects Projectsend. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-53906?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-53906 have an EU (EUVD) identifier?: Yes. CVE-2023-53906 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60224.
When was CVE-2023-53906 published?: CVE-2023-53906 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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