CVE-2019-18791Network attack vector

Session credential theft via stored script execution

Published Feb 13, 2020 · Updated Aug 5, 2024

Stored cross-site scripting in older Lexmark printer embedded web servers allows remote authenticated users to read browser-accessible data. The server fails to neutralize stored attacker-controlled script content before rendering it in another user's browser; Lexmark has not identified the affected request or field. Exploitation requires low-privileged access and user interaction, and can disclose session credentials and other information available to the victim's browser.

CVSS severity5.7
Medium
EPSS probability0.53%
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 older Lexmark printer embedded web servers allows remote authenticated users to read browser-accessible data. The server fails to neutralize stored attacker-controlled script content before rendering it in another user's browser; Lexmark has not identified the affected request or field. Exploitation requires low-privileged access and user interaction, and can disclose session credentials and other information available to the victim's browser.

The record

CVE
CVE-2019-18791
Published
Feb 13, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 13, 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

5.7LexmarkCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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