Skip to main content

Guardian CVE-2026-34096

| EUVDEUVD-2026-41052 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-07-01 VulnCheck GHSA-ggfh-fv42-r856
4.8
CVSS 4.0 · Vendor: VulnCheck
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Jul 01, 2026

Reflected XSS in Guardian language-system's designer.php allows authenticated attackers to inject and execute arbitrary JavaScript in a victim's browser session by crafting a malicious URL. The name GET parameter is echoed unsanitized directly into an HTML input value attribute at line 57, enabling classic reflected cross-site scripting. A publicly available proof-of-concept exploit exists on GitHub (via VulnCheck advisory); the vulnerability is not currently listed in CISA KEV, and real-world impact is constrained by the requirement for victim interaction and authentication.

Affected VersionsENISA

language-system 0 ≤e42c395ec4b03fe62973a669c9209a673838b8a4

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Know when Guardian gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (VulnCheck) PRIMARY 4.8 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
Active
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
Low
Subsequent system: Integrity
Low
Subsequent system: Availability
None

DescriptionCVE.org

Guardian language-system fails to sanitize the name GET parameter before outputting it into an HTML input value attribute in designer.php (line 57). An authenticated attacker can craft a URL containing script tags that execute in the victim's browser session.

Threat Intelligence Overview

EPSS Score
0.1%
Top 96% exploitable
Exploit
POC
Public exploit code exists
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
Poc
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +24
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

CVE-2026-34107 CRITICAL POC
9.3 Jul 01

OS command injection in Guardian language-system lets unauthenticated remote attackers run arbitrary shell commands by i

CVE-2026-34106 CRITICAL POC
9.3 Jul 01

Remote code execution in Guardian language-system allows unauthenticated attackers to run arbitrary OS commands by injec

CVE-2026-34099 CRITICAL POC
9.3 Jul 01

Unauthenticated SQL injection in Guardian Language System lets remote attackers manipulate the backend database by injec

CVE-2026-34105 HIGH POC
8.7 Jul 01

Error-based SQL injection in Guardian Language-System allows a network-accessible authenticated attacker to extract the

CVE-2026-34104 HIGH POC
8.7 Jul 01

SQL injection in Guardian Language-System's designer.php (line 124) allows attackers to extract, modify, or destroy the

CVE-2026-34103 HIGH POC
8.7 Jul 01

Error-based SQL injection in Guardian language-system's subtitles.php exposes full database contents to low-privileged a

CVE-2026-34102 HIGH POC
8.7 Jul 01

Error-based SQL injection in Guardian Language-System exposes the full database to low-privileged authenticated attacker

CVE-2026-34101 HIGH POC
8.7 Jul 01

Error-based SQL injection in Guardian language-system's text_file.php exposes the full database to extraction via a triv

CVE-2026-34100 HIGH POC
8.7 Jul 01

SQL injection in Guardian language-system's media.php endpoint allows low-privilege authenticated attackers to extract t

CVE-2020-7049 HIGH POC
7.3 Jun 30

Nozomi Networks OS before 19.0.4 allows /#/network?tab=network_node_list.html CSV Injection. Rated high severity (CVSS 7

CVE-2020-15307 MEDIUM POC
6.1 Jun 30

Nozomi Guardian before 19.0.4 allows attackers to achieve stored XSS (in the web front end) by leveraging the ability to

CVE-2023-29245 CRITICAL
9.2 Sep 19

A SQL Injection vulnerability in Nozomi Networks Guardian and CMC, due to improper input validation in certain fields us

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy