How severe is CVE-2020-36973?

CVE-2020-36973 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-36973 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-36973?

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

Does CVE-2020-36973 have an EU (EUVD) identifier?

Yes. CVE-2020-36973 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30880.

When was CVE-2020-36973 published?

CVE-2020-36973 was published on 2026-01-28 and last updated on 2026-06-17.

CVE-2020-36973

CVE-2020-36973 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. 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-434.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-30880
Weakness: CWE-434
Published: 2026-01-28
Last modified: 2026-06-17

Description

PDW File Browser 1.3 contains a remote code execution vulnerability that allows authenticated users to upload and rename webshell files to arbitrary web server locations. Attackers can upload a .txt webshell, rename it to .php, and move it to accessible directories using double-encoded path traversal techniques.

Frequently asked questions

What is CVE-2020-36973?: PDW File Browser 1.3 contains a remote code execution vulnerability that allows authenticated users to upload and rename webshell files to arbitrary web server locations. Attackers can upload a .txt webshell, rename it to .php, and move it to accessible directories using double-encoded path traversal techniques.
How severe is CVE-2020-36973?: CVE-2020-36973 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-36973 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-36973?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2020-36973 have an EU (EUVD) identifier?: Yes. CVE-2020-36973 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30880.
When was CVE-2020-36973 published?: CVE-2020-36973 was published on 2026-01-28 and last updated on 2026-06-17.

References

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