CVE-2019-12512Network attack vector

Stored XSS via unsanitized X-Forwarded-For logging

Published Feb 24, 2020 · Updated Aug 4, 2024

Stored XSS in NETGEAR Nighthawk X10 R9000 logs before 1.0.4.24 allows remote attackers to run script in an administrator browser. An incorrect login records the client-controlled X-Forwarded-For value without neutralizing a closing textarea tag, so later log rendering interprets the remainder as active markup. Exploitation requires network access to the login interface and an administrator to view Advanced settings, Administration, Logs; the resulting script runs in that administrator browser context.

CVSS severity6.1
Medium
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in NETGEAR Nighthawk X10 R9000 logs before 1.0.4.24 allows remote attackers to run script in an administrator browser. An incorrect login records the client-controlled X-Forwarded-For value without neutralizing a closing textarea tag, so later log rendering interprets the remainder as active markup. Exploitation requires network access to the login interface and an administrator to view Advanced settings, Administration, Logs; the resulting script runs in that administrator browser context.

The record

CVE
CVE-2019-12512
Published
Feb 24, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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 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

T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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