CVE-2017-20219Public exploitNetwork attack vector

Browser script execution via unsafe document.write

Published Mar 15, 2026 · Updated Mar 15, 2026

DOM-based XSS in Serviio Pro 1.8.0.0 PRO allows remote attackers to execute script in MediaBrowser through a crafted URL. MediaBrowser reads untrusted document.location data and passes it to document.write() without neutralizing executable markup. A victim must open the crafted URL; affected releases are 1.6.1, 1.7.0, 1.7.1, and 1.8.0.0 PRO, and code runs only in the affected site's browser context.

CVSS severity6.1
Medium
EPSS probability0.24%
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 Serviio Pro 1.8.0.0 PRO allows remote attackers to execute script in MediaBrowser through a crafted URL. MediaBrowser reads untrusted document.location data and passes it to document.write() without neutralizing executable markup. A victim must open the crafted URL; affected releases are 1.6.1, 1.7.0, 1.7.1, and 1.8.0.0 PRO, and code runs only in the affected site's browser context.

The record

CVE
CVE-2017-20219
Published
Mar 15, 2026
Updated
Mar 15, 2026
Vendor
Serviio
Product
Serviio Pro
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 15, 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=1.6.1
  2. Affected versionversion=1.7.0
  3. Affected versionversion=1.7.1
  4. Affected versionversion=1.8.0.0 PRO

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Serviio · Serviio Proversion=1.6.1; version=1.7.0; version=1.7.1; version=1.8.0.0 PRO

Published CVSS scores

6.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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.

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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
Privilegesunauthenticated
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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