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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-34802

23
FAUCET Score

CVE-2026-34802 identifies a stored cross-site scripting (XSS) vulnerability in Endian Firewall versions 3.3.25 and prior, specifically within the /cgi-bin/salearn.cgi component. An authenticated attacker can inject arbitrary JavaScript via the remark user ham spam parameter, which is then executed when other users view the affected page. This vulnerability carries a medium severity CVSSv3.1 score of 6.4, indicating a network-based attack with low complexity and requiring low privileges, potentially leading to client-side compromise. There is currently no evidence of active exploitation, public exploit code availability (e.g., Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.3.25CPE matchmatch criteria
cpe:2.3:a:endian:firewall_community:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.1MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/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
PASSIVE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
LOW
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 2nd percentile among its peer group of 21,977 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

help.endian.com / hc/en-us/sections/360004371358-Community
Release Notes
vulncheck.com / advisories/endian-firewall-cgi-bin-salearn-cgi-remark-user-ham-spam-stored-cross-site-scripting
Third Party Advisory