CVE-2019-20743

Browser script execution via stored cross-site scripting

Published Apr 16, 2020 · Updated Aug 5, 2024

Stored XSS in NETGEAR WAC510 firmware before 8.0.1.3 allows remote attackers on an adjacent network to execute script in a user's browser. NETGEAR has not published the affected interface, input field, storage location, or missing output-neutralization operation. Exploitation requires adjacent-network access and user interaction, with impact limited to exposing or modifying browser-accessible data.

CVSS severity5.2
Medium
EPSS probability0.44%
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 WAC510 firmware before 8.0.1.3 allows remote attackers on an adjacent network to execute script in a user's browser. NETGEAR has not published the affected interface, input field, storage location, or missing output-neutralization operation. Exploitation requires adjacent-network access and user interaction, with impact limited to exposing or modifying browser-accessible data.

The record

CVE
CVE-2019-20743
Published
Apr 16, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 16, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.2NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
2.9NIST NVDAV:A/AC:M/Au:N/C:N/I:P/A:N
5.2NETGEARCVSS:3.0/AV:A/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)
Vectoradjacent
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.

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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