CVE-2019-19773Network attack vector

Browser data theft via stored script execution

Published Mar 6, 2020 · Updated Aug 5, 2024

Stored XSS in embedded web servers on older Lexmark devices allows remote authenticated users to steal browser-accessible information. Lexmark has not disclosed which EWS field stores attacker-controlled input or where output encoding fails before that input is rendered. Exploitation requires low-privileged network access and a separate user to load the stored content; impact is limited to browser-accessible data, including session credentials.

CVSS severity5.7
Medium
EPSS probability0.66%
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 embedded web servers on older Lexmark devices allows remote authenticated users to steal browser-accessible information. Lexmark has not disclosed which EWS field stores attacker-controlled input or where output encoding fails before that input is rendered. Exploitation requires low-privileged network access and a separate user to load the stored content; impact is limited to browser-accessible data, including session credentials.

The record

CVE
CVE-2019-19773
Published
Mar 6, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1185
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 6, 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 vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.7LexmarkCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
3.5NIST NVDAV:N/AC:M/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1185Browser Session Cookie

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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