CVE-2017-20177Network attack vector

Administrator-session script execution via unsanitized user IP

Published Feb 6, 2023 · Updated Mar 5, 2025

Stored cross-site scripting in WangGuard 1.8.0 allows remote attackers to inject script through a user IP shown to administrators. The WGG User List builds the user-info URL with an untrusted userIP value, and wangguard_users_info reads that query parameter without sanitizing it. Execution requires an administrator to open the affected user-information view; the injected script then runs in that administrator's browser session.

CVSS severity6.1
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in WangGuard 1.8.0 allows remote attackers to inject script through a user IP shown to administrators. The WGG User List builds the user-info URL with an untrusted userIP value, and wangguard_users_info reads that query parameter without sanitizing it. Execution requires an administrator to open the affected user-information view; the injected script then runs in that administrator's browser session.

The record

CVE
CVE-2017-20177
Published
Feb 6, 2023
Updated
Mar 5, 2025
Vendor
WangGuard Project
Product
WangGuard
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 2025Record 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=1.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WangGuard Project · WangGuardversion=1.8.0

Published CVSS scores

3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/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 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 exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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