CVE-2026-55592Public exploit

Cross-site scripting via unchecked iframe URL

Published Jul 7, 2026 · Updated Jul 7, 2026

Cross-site scripting in Dashy before 4.3.7 allows attackers to execute JavaScript through a crafted workspace link. The workspace view decodes the url query value and assigns it directly to an iframe source without validating or restricting its scheme. A logged-in user must open the link; the script then runs on the Dashy origin, where it can read same-origin data, alter the DOM, and issue requests as the victim.

CVSS severity3.9
Low
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Dashy before 4.3.7 allows attackers to execute JavaScript through a crafted workspace link. The workspace view decodes the url query value and assigns it directly to an iframe source without validating or restricting its scheme. A logged-in user must open the link; the script then runs on the Dashy origin, where it can read same-origin data, alter the DOM, and issue requests as the victim.

The record

CVE
CVE-2026-55592
Published
Jul 7, 2026
Updated
Jul 7, 2026
Vendor
Alicia Sykes
Product
Dashy
Classifications
CWE-79, T1203
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 7, 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=< 4.3.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Alicia Sykes · Dashyversion=< 4.3.7

Published CVSS scores

3.9GitHubCVSS:3.1/AV:L/AC:L/PR:L/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.

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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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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