CVE-2026-34096Public exploitNetwork attack vector

Browser script execution via unencoded name parameter

Published Jul 1, 2026 · Updated Jul 1, 2026

Reflected XSS in The Guardian Language System allows remote authenticated users to execute script in a victim's browser via a crafted URL. The designer.php input value prints the name GET parameter without HTML encoding, so a quote closes the attribute and injects script markup. Exploitation requires an authenticated attacker to persuade a victim to open the crafted URL, bounding impact to the victim's browser session.

CVSS severity4.8
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in The Guardian Language System allows remote authenticated users to execute script in a victim's browser via a crafted URL. The designer.php input value prints the name GET parameter without HTML encoding, so a quote closes the attribute and injects script markup. Exploitation requires an authenticated attacker to persuade a victim to open the crafted URL, bounding impact to the victim's browser session.

The record

CVE
CVE-2026-34096
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
The Guardian
Product
Language System
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 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=0 <=e42c395ec4b03fe62973a669c9209a673838b8a4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Guardian · Language Systemversion=0 <=e42c395ec4b03fe62973a669c9209a673838b8a4

Published CVSS scores

4.8VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

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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