How severe is CVE-2019-18393?

CVE-2019-18393 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-18393 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18393?

CVE-2019-18393 affects Igniterealtime Openfire. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18393?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-18393 published?

CVE-2019-18393 was published on 2019-10-24 and last updated on 2026-06-17.

CVE-2019-18393

CVE-2019-18393 is a medium-severity vulnerability in Igniterealtime Openfire with a CVSS 3.x base score of 5.3. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Igniterealtime Openfire
Published: 2019-10-24
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2019-18393?: CVE-2019-18393 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-18393 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18393?: CVE-2019-18393 affects Igniterealtime Openfire. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18393?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-18393 published?: CVE-2019-18393 was published on 2019-10-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:igniterealtime:openfire:*:*:*:*:*:*:*:*

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