How severe is CVE-2021-33497?

CVE-2021-33497 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2021-33497 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33497?

CVE-2021-33497 affects Dutchcoders Transfer.sh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-33497?

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

When was CVE-2021-33497 published?

CVE-2021-33497 was published on 2021-05-24 and last updated on 2026-06-17.

CVE-2021-33497

CVE-2021-33497 is a critical-severity vulnerability in Dutchcoders Transfer.sh with a CVSS 3.x base score of 9.1. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Dutchcoders Transfer.sh
Published: 2021-05-24
Last modified: 2026-06-17

Description

Dutchcoders transfer.sh before 1.2.4 allows Directory Traversal for deleting files.

Frequently asked questions

What is CVE-2021-33497?: Dutchcoders transfer.sh before 1.2.4 allows Directory Traversal for deleting files.
How severe is CVE-2021-33497?: CVE-2021-33497 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2021-33497 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33497?: CVE-2021-33497 affects Dutchcoders Transfer.sh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-33497?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-33497 published?: CVE-2021-33497 was published on 2021-05-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:dutchcoders:transfer.sh:*:*:*:*:*:*:*:*

More vulnerabilities in Dutchcoders Transfer.sh

CVE-2022-40931 — Medium (CVSS 6.1): dutchcoders Transfer.sh 1.4.0 is vulnerable to Cross Site Scripting (XSS).
CVE-2021-33496 — Medium (CVSS 6.1): Dutchcoders transfer.sh before 1.2.4 allows XSS via an inline view.

All CVEs affecting Dutchcoders Transfer.sh →

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