CVE-2018-19141

Open Ticket Request System (OTRS) 4.0.x before 4.0.33 and 5.0.x before 5.0.31 allows an admin to conduct an XSS attack via a modified URL because user and customer preferences are mishandled.

Published: 2018-11-11 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2018-19141 is rated Low Risk (36.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.67%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-19141

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.27% 0.67% +0.40%
2 2025-03-30 0.22% 0.27% +0.05%
3 2025-03-29 0.22%

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-19141

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.8 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
1.7 2.7 [email protected]
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
6.8 2.9 [email protected]

Weakness enumeration for CVE-2018-19141

OS Trackers for CVE-2018-19141

vendor priority summary link
debian not yet assigned CVE-2018-19141 not yet assigned priority: Debian including 1 source packages (otrs2), 1 status rows across 1 suites (bullseye): resolved 1. https://security-tracker.debian.org/tracker/CVE-2018-19141
ubuntu low CVE-2018-19141 low priority: Ubuntu including 1 source packages (otrs2), 17 status rows across 17 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 9, DNE 6, needed 1, released 1. https://ubuntu.com/security/CVE-2018-19141

Affected software / configurations for CVE-2018-19141

Vendor Product Version Raw CPE
otrs open_ticket_request_system >= 4.0.0, < 4.0.33 cpe:2.3:a:otrs:open_ticket_request_system:*:*:*:*:*:*:*:*
otrs open_ticket_request_system >= 5.0.0, < 5.0.31 cpe:2.3:a:otrs:open_ticket_request_system:*:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

References for CVE-2018-19141

cvelogic Threat Intelligence