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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-3404

25
FAUCET Score

CVE-2026-3404 is a remote XML External Entity (XXE) vulnerability affecting thinkgem JeeSite up to version 5.15.1, specifically within the /com/jeesite/common/shiro/cas/CasOutHandler.java component. This vulnerability has a CVSS score of 5.0 (Medium), indicating that while it can be exploited remotely, the attack complexity is high, and it requires low privileges. The potential impact is limited to low confidentiality, integrity, and availability. Although an exploit has been published, there is no evidence of active exploitation, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.15.1CPE matchmatch criteria
cpe:2.3:a:jeesite:jeesite:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

1.3LOW

CVSS:4.0/AV:N/AC:H/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
HIGH
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
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 6th percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

Remediation records are not available for this CVE.

References

vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
yuque.com / la12138/pa2fpb/ew8x2qss8dv0bsu0
ExploitThird Party Advisory