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CVE-2018-20437

24
FAUCET Score

CVE-2018-20437 describes a path traversal vulnerability in the fileDownload function of FEBS-Shiro before 2018-11-05, allowing an unauthenticated attacker to download arbitrary files. With a CVSS score of 7.5 (HIGH), this vulnerability has a low attack complexity and could lead to high confidentiality impact, as an attacker can access sensitive configuration files. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 2018.11.05CPE matchmatch criteria
cpe:2.3:a:mrbird:febs-shiro:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.44%
Probability of exploitation in next 30 days
EPSS Percentile
82.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0244 is in the 69th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / wuyouzhuguli/FEBS-Shiro/commit/9a753215b0969a5d5b5bfe8c68585339fee96260
PatchThird Party Advisory
github.com / wuyouzhuguli/FEBS-Shiro/commit/a9706b1b3c96bacece24886429b4423c3a467acd
PatchThird Party Advisory
github.com / wuyouzhuguli/FEBS-Shiro/issues/40
ExploitThird Party Advisory