CVE-2023-3479Public exploitNetwork attack vector

Script execution via unencoded debug-panel variables

Published Jun 30, 2023 · Updated Nov 6, 2024

Reflected XSS in Hestia Control Panel before 1.7.8 allows remote attackers to execute scripts through the debug panel. The debug_panel.php template writes server, session, POST, and GET names and values into HTML without output encoding. A victim must open an attacker-crafted request while debug mode is enabled or the template remains directly accessible, exposing browser-readable panel data.

CVSS severity6.1
Medium
EPSS probability1.29%
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 Hestia Control Panel before 1.7.8 allows remote attackers to execute scripts through the debug panel. The debug_panel.php template writes server, session, POST, and GET names and values into HTML without output encoding. A victim must open an attacker-crafted request while debug mode is enabled or the template remains directly accessible, exposing browser-readable panel data.

The record

CVE
CVE-2023-3479
Published
Jun 30, 2023
Updated
Nov 6, 2024
Vendor
Hestia Control Panel
Product
Hestia Control Panel
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 2024Record 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 <1.7.8
  2. Affected versionversion=unspecified <1.7.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hestia Control Panel · Hestia Control Panelversion=0 <1.7.8; version=unspecified <1.7.8

Published CVSS scores

4.3huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
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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