CVE-2026-6999Public exploitNetwork attack vector

Stored XSS via unneutralized SSID value

Published Apr 25, 2026 · Updated Apr 25, 2026

Stored cross-site scripting in Bivocom TR321 21.1.1.50 allows remote authenticated users to inject script through the Wireless Setting SSID. The Wireless Setting handler accepts a crafted Network Name SSID and renders it in the WebUI without neutralizing executable markup. Administrative WebUI access is required to plant the value, and another user must view the affected page for the injected script to run.

CVSS severity2.4
Low
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Bivocom TR321 21.1.1.50 allows remote authenticated users to inject script through the Wireless Setting SSID. The Wireless Setting handler accepts a crafted Network Name SSID and renders it in the WebUI without neutralizing executable markup. Administrative WebUI access is required to plant the value, and another user must view the affected page for the injected script to run.

The record

CVE
CVE-2026-6999
Published
Apr 25, 2026
Updated
Apr 25, 2026
Vendor
Bivocom
Product
TR321
Classifications
CWE-94, CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=21.1.1.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Bivocom · TR321version=21.1.1.50

Published CVSS scores

3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N
2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
1.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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