CVE-2019-18393

PluginServlet.java in Ignite Realtime Openfire through 4.4.2 does not ensure that retrieved files are located under the Openfire home directory, aka a directory traversal vulnerability.

Published: 2019-10-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-18393 is rated Moderate Risk (56.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 84.40%, 99th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

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-2019-18393

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 2026-05-03 83.85% 84.40% +0.55%
2 2026-03-18 82.52% 83.85% +1.33%
3 2025-12-28 — 82.52% —

Full EPSS history (27 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-18393

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-18393

GitHub Security Advisory for CVE-2019-18393

GHSA-59h8-h34r-q9cv · Severity: medium · Ecosystem: maven — Ignite Realtime Openfire directory traversal vulnerability

Affected software / configurations for CVE-2019-18393

Vendor Product Version Raw CPE
igniterealtime openfire <= 4.4.2 cpe:2.3:a:igniterealtime:openfire:*:*:*:*:*:*:*:*

References for CVE-2019-18393

cvelogic Threat Intelligence