How severe is CVE-2021-40965?

CVE-2021-40965 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-40965 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40965?

CVE-2021-40965 affects Prasathmani Tiny File Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-40965?

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.

When was CVE-2021-40965 published?

CVE-2021-40965 was published on 2021-09-15 and last updated on 2026-06-17.

CVE-2021-40965

CVE-2021-40965 is a high-severity vulnerability in Prasathmani Tiny File Manager with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.3
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Prasathmani Tiny File Manager
Published: 2021-09-15
Last modified: 2026-06-17

Description

A Cross-Site Request Forgery (CSRF) vulnerability exists in TinyFileManager all version up to and including 2.4.6 that allows attackers to upload files and run OS commands by inducing the Administrator user to browse a URL controlled by an attacker.

Frequently asked questions

What is CVE-2021-40965?: A Cross-Site Request Forgery (CSRF) vulnerability exists in TinyFileManager all version up to and including 2.4.6 that allows attackers to upload files and run OS commands by inducing the Administrator user to browse a URL controlled by an attacker.
How severe is CVE-2021-40965?: CVE-2021-40965 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-40965 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40965?: CVE-2021-40965 affects Prasathmani Tiny File Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-40965?: 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.
When was CVE-2021-40965 published?: CVE-2021-40965 was published on 2021-09-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:prasathmani:tiny_file_manager:*:*:*:*:*:*:*:*

More vulnerabilities in Prasathmani Tiny File Manager

CVE-2022-40916 — Critical (CVSS 9.8): Tiny File Manager v2.4.7 and below is vulnerable to session fixation.
CVE-2022-45476 — Critical (CVSS 9.8): Tiny File Manager version 2.4.8 executes the code of files uploaded by users of the application, instead of just…
CVE-2022-1000 — Critical (CVSS 9.8): Path Traversal in GitHub repository prasathmani/tinyfilemanager prior to 2.4.7.
CVE-2022-23044 — High (CVSS 8.8): Tiny File Manager version 2.4.8 allows an unauthenticated remote attacker to persuade users to perform unintended…
CVE-2021-45010 — High (CVSS 8.8): A path traversal vulnerability in the file upload functionality in tinyfilemanager.php in Tiny File Manager before…
CVE-2020-12103 — High (CVSS 7.7): In Tiny File Manager 2.4.1 there is a vulnerability in the ajax file backup copy functionality which allows…

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