CVE-2026-79315Network attack vector

Session compromise via request URI expression injection

Published Sep 22, 2026 · Updated Sep 22, 2026

Reflected XSS in the sidebar of vaxilu x-ui 0.3.2 allows remote attackers to run script in a logged-in user's browser via a crafted URL. The sidebar embeds the raw request URI inside a client-side template binding; HTML entity decoding restores attacker input before expression evaluation. The victim must be signed in and open the crafted link; execution stays within the panel origin but can read data and issue management requests through the victim's session.

CVSS severityUnavailable
Unscored
EPSS probability0.27%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in the sidebar of vaxilu x-ui 0.3.2 allows remote attackers to run script in a logged-in user's browser via a crafted URL. The sidebar embeds the raw request URI inside a client-side template binding; HTML entity decoding restores attacker input before expression evaluation. The victim must be signed in and open the crafted link; execution stays within the panel origin but can read data and issue management requests through the victim's session.

The record

CVE
CVE-2026-79315
Published
Sep 22, 2026
Updated
Sep 22, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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