How severe is CVE-2019-19596?

CVE-2019-19596 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-19596 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19596?

CVE-2019-19596 affects Gitbook. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19596?

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

When was CVE-2019-19596 published?

CVE-2019-19596 was published on 2019-12-05 and last updated on 2026-06-17.

CVE-2019-19596

CVE-2019-19596 is a medium-severity vulnerability in Gitbook with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Gitbook
Published: 2019-12-05
Last modified: 2026-06-17

Description

GitBook through 2.6.9 allows XSS via a local .md file.

Frequently asked questions

What is CVE-2019-19596?: GitBook through 2.6.9 allows XSS via a local .md file.
How severe is CVE-2019-19596?: CVE-2019-19596 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-19596 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19596?: CVE-2019-19596 affects Gitbook. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19596?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-19596 published?: CVE-2019-19596 was published on 2019-12-05 and last updated on 2026-06-17.

References

https://github.com/ianxtianxt/gitbook-xss/

Affected products (1)

cpe:2.3:a:gitbook:gitbook:*:*:*:*:*:*:*:*

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