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CVE-2025-8344

34
FAUCET Score

CVE-2025-8344 is a critical unrestricted file upload vulnerability affecting openviglet shio versions up to 0.3.8. Specifically, the shStaticFileUpload function in ShStaticFileAPI.java allows remote attackers to upload arbitrary files by manipulating the filename argument. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While not yet in CISA's KEV catalog, the exploit has been publicly disclosed, and there is significant community discussion, indicating a high potential for exploitation despite no known active exploits or readily available Metasploit/Nuclei modules.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.3.8CPE matchmatch criteria
cpe:2.3:a:viglet:shio:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

2.1LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 4th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

github.com / openviglet/shio/issues/1029
ExploitIssue TrackingVendor Advisory
github.com / openviglet/shio/issues/1029
ExploitIssue TrackingVendor Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry