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CVE-2020-17363

31
FAUCET Score

CVE-2020-17363 is a critical remote code execution vulnerability affecting USVN (User-friendly SVN) versions prior to 1.0.9. An authenticated attacker can exploit this by injecting shell metacharacters into the number_start or number_end parameters within the Timeline module's LastHundredRequest function. With a CVSS score of 9.9 (Critical), this vulnerability allows for complete compromise of confidentiality, integrity, and availability of the affected system with low attack complexity and no user interaction required. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.9CPE matchmatch criteria
cpe:2.3:a:usvn:usvn:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.9CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.38%
Probability of exploitation in next 30 days
EPSS Percentile
90.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0438 is in the 91st percentile among its peer group of 1,128 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Remediation records are not available for this CVE.

References

sysdream.com / news/lab/2020-08-12-cve-2020-17363-usvn-remote-code-execution
ExploitThird Party Advisory