CVE-2023-4517Public exploitNetwork attack vector

Stored script execution via unencoded server settings

Published Oct 13, 2023 · Updated Sep 17, 2024

Stored XSS in Hestia Control Panel before 1.8.6 allows remote authenticated users to run script in another user's browser. The Edit Server template outputs stored database aliases, backup settings, and SSL certificate fields into HTML without entity encoding. A privileged user must store crafted values and another user must open the Edit Server page, exposing or altering data available to that browser session.

CVSS severity5.4
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Hestia Control Panel before 1.8.6 allows remote authenticated users to run script in another user's browser. The Edit Server template outputs stored database aliases, backup settings, and SSL certificate fields into HTML without entity encoding. A privileged user must store crafted values and another user must open the Edit Server page, exposing or altering data available to that browser session.

The record

CVE
CVE-2023-4517
Published
Oct 13, 2023
Updated
Sep 17, 2024
Vendor
Hestia Control Panel
Product
Hestia Control Panel
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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 <1.8.6
  2. Affected versionversion=unspecified <1.8.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Hestia Control Panel · Hestia Control Panelversion=0 <1.8.6; version=unspecified <1.8.6

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.2huntr.devCVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:U/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 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')
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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