CVE-2026-44541Public exploitNetwork attack vector

Script execution via unsanitized description override

Published Jun 8, 2026 · Updated Jun 8, 2026

DOM-based XSS in Ethyca Fides 2.33.0 through 2.84.4 allows remote attackers to execute scripts via a crafted description override. fides.js reads fides_description from a URL, JavaScript global, or cookie and sends it directly to a live-HTML DOM sink without the expected server-side nh3 sanitization. Exposure requires Fides Enterprise consent management, fides.js, and non-default HTML descriptions; execution has the embedding site's origin authority.

CVSS severity7.0
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DOM-based XSS in Ethyca Fides 2.33.0 through 2.84.4 allows remote attackers to execute scripts via a crafted description override. fides.js reads fides_description from a URL, JavaScript global, or cookie and sends it directly to a live-HTML DOM sink without the expected server-side nh3 sanitization. Exposure requires Fides Enterprise consent management, fides.js, and non-default HTML descriptions; execution has the embedding site's origin authority.

The record

CVE
CVE-2026-44541
Published
Jun 8, 2026
Updated
Jun 8, 2026
Vendor
Ethyca
Product
Fides
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.33.0, < 2.84.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ethyca · Fidesversion=>= 2.33.0, < 2.84.5

Published CVSS scores

7.0GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA: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')
T1189Drive-by Compromise

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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