CVE-2015-3172Public exploitNetwork attack vector

Cross-site scripting via unsafe SGF parsing

Published Jul 6, 2022 · Updated Aug 6, 2024

Cross-site scripting in EidoGo allows remote authenticated users to execute script in a victim browser via malicious SGF input. SGF comments and game information are inserted into the document with innerHTML without escaping, while URL-loaded data beginning with a left brace is evaluated with eval, allowing attacker-controlled JavaScript. Exploitation requires a victim to load the crafted game record; the documented impact is client-side script execution with confidentiality and integrity effects, not service interruption.

CVSS severity5.4
Medium
EPSS probability0.50%
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 EidoGo allows remote authenticated users to execute script in a victim browser via malicious SGF input. SGF comments and game information are inserted into the document with innerHTML without escaping, while URL-loaded data beginning with a left brace is evaluated with eval, allowing attacker-controlled JavaScript. Exploitation requires a victim to load the crafted game record; the documented impact is client-side script execution with confidentiality and integrity effects, not service interruption.

The record

CVE
CVE-2015-3172
Published
Jul 6, 2022
Updated
Aug 6, 2024
Vendor
Justin Kramer
Product
EidoGo
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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?

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

  1. Affected versionversion=all versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Justin Kramer · EidoGoversion=all versions

Published CVSS scores

3.5NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
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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