CVE-2020-17363

Name: CVE-2020-17363
Creator: NVD / NIST
Published: 2020-12-31T02:15:12.433+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.9/10EPSS 4.38%

Last modified Jun 17, 2026

CVE-2020-17363 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. USVN (aka User-friendly SVN) before 1.0.9 allows remote code execution via shell metacharacters in the number_start or number_end parameter to LastHundredRequest (aka lasthundredrequestAction) in the Timeline module. NOTE: this may overlap CVE-2020-25069.. EPSS estimates a 4.38% chance of exploitation in the next 30 days.

Description

USVN (aka User-friendly SVN) before 1.0.9 allows remote code execution via shell metacharacters in the number_start or number_end parameter to LastHundredRequest (aka lasthundredrequestAction) in the Timeline module. NOTE: this may overlap CVE-2020-25069.

Metrics

CVSS 3.1

9.9/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

4.38%

90.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Usvn	Usvn	< 1.0.9

References

https://sysdream.com/news/lab/2020-08-12-cve-2020-17363-usvn-remote-code-execution/Exploit, Third Party Advisory
https://sysdream.com/news/lab/2020-08-12-cve-2020-17363-usvn-remote-code-execution/Exploit, Third Party Advisory

Timeline

Published: Dec 31, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-17363?

How severe is CVE-2020-17363?

CVE-2020-17363 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 4.38% probability of exploitation in the next 30 days.

How do I fix CVE-2020-17363?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-17363?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST