CVE-2019-19855Network attack vector

Stored script execution via unescaped authentication type

Published Jan 15, 2020 · Updated Aug 5, 2024

Stored XSS in Serpico 1.3.0 allows remote authenticated users to execute script in an administrator's browser via auth_type. The list_user.haml template renders stored user.auth_type values without Haml's escaped filter, causing browser markup to be interpreted rather than encoded. An attacker needs high-privilege authenticated access to supply the value, and execution requires an administrator to view the user list, exposing data and actions available to that browser session.

CVSS severity4.8
Medium
EPSS probability0.71%
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 Serpico 1.3.0 allows remote authenticated users to execute script in an administrator's browser via auth_type. The list_user.haml template renders stored user.auth_type values without Haml's escaped filter, causing browser markup to be interpreted rather than encoded. An attacker needs high-privilege authenticated access to supply the value, and execution requires an administrator to view the user list, exposing data and actions available to that browser session.

The record

CVE
CVE-2019-19855
Published
Jan 15, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 15, 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

4.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.5NIST National Vulnerability DatabaseAV: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 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')
CAPEC-592Stored XSS
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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