CVE-2019-16375Network attack vector

Authenticated script execution via crafted article body

Published Mar 19, 2020 · Updated Aug 5, 2024

Stored XSS in OTRS 7.0.11 and earlier allows remote authenticated users to execute JavaScript in an agent's browser. The application stores an attacker-supplied article body and renders it without adequate script neutralization in the agent reply composer. Exploitation requires an agent or customer account with permission to create the malicious article; an agent must then compose a reply, which runs the payload in that agent's browser and permits actions available to that session.

CVSS severity5.4
Medium
EPSS probability1.01%
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 OTRS 7.0.11 and earlier allows remote authenticated users to execute JavaScript in an agent's browser. The application stores an attacker-supplied article body and renders it without adequate script neutralization in the agent reply composer. Exploitation requires an agent or customer account with permission to create the malicious article; an agent must then compose a reply, which runs the payload in that agent's browser and permits actions available to that session.

The record

CVE
CVE-2019-16375
Published
Mar 19, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 19, 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
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')
T1203Exploitation for Client Execution

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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