CVE-2018-18623Public exploitNetwork attack vector

Stored XSS via unsanitized Text Panel HTML

Published Jun 2, 2020 · Updated Aug 5, 2024

Stored XSS in Grafana 5.3.1 Text Panels allows remote attackers to execute script in a dashboard viewer's browser via crafted HTML. The Text Panel's HTML mode inserts saved panel content into the rendered dashboard without sanitizing script-capable markup. The attacker must be able to create or modify a Text Panel, and exploitation occurs when another user opens the affected dashboard.

CVSS severity6.1
Medium
EPSS probability1.76%
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 Grafana 5.3.1 Text Panels allows remote attackers to execute script in a dashboard viewer's browser via crafted HTML. The Text Panel's HTML mode inserts saved panel content into the rendered dashboard without sanitizing script-capable markup. The attacker must be able to create or modify a Text Panel, and exploitation occurs when another user opens the affected dashboard.

The record

CVE
CVE-2018-18623
Published
Jun 2, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 2, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1UbuntuCVSS: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.

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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
PrivilegesUnavailable
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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