How severe is CVE-2019-18951?

CVE-2019-18951 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-18951 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18951?

CVE-2019-18951 affects Sibsoft Xfilesharing. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18951?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-18951 published?

CVE-2019-18951 was published on 2019-11-13 and last updated on 2026-06-17.

CVE-2019-18951

CVE-2019-18951 is a high-severity vulnerability in Sibsoft Xfilesharing with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Sibsoft Xfilesharing
Published: 2019-11-13
Last modified: 2026-06-17

Description

SibSoft Xfilesharing through 2.5.1 allows op=page&tmpl=../ directory traversal to read arbitrary files.

Frequently asked questions

What is CVE-2019-18951?: SibSoft Xfilesharing through 2.5.1 allows op=page&tmpl=../ directory traversal to read arbitrary files.
How severe is CVE-2019-18951?: CVE-2019-18951 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-18951 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18951?: CVE-2019-18951 affects Sibsoft Xfilesharing. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18951?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-18951 published?: CVE-2019-18951 was published on 2019-11-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sibsoft:xfilesharing:*:*:*:*:*:*:*:*

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