How severe is CVE-2017-11593?

CVE-2017-11593 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-11593 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11593?

CVE-2017-11593 affects Ooso Markdown Preview Plus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-11593?

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

When was CVE-2017-11593 published?

CVE-2017-11593 was published on 2017-07-24 and last updated on 2026-06-17.

CVE-2017-11593

CVE-2017-11593 is a medium-severity vulnerability in Ooso Markdown Preview Plus with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ooso Markdown Preview Plus
Published: 2017-07-24
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the Markdown Preview Plus extension before 0.5.7 for Chrome allows remote attackers to inject arbitrary web script or HTML into some web applications via the upload and display of crafted text, markdown, or rst files that are designed to be viewed in the browser as plain text, but that will be converted to HTML without proper sanitization.

Frequently asked questions

What is CVE-2017-11593?: Cross-site scripting (XSS) vulnerability in the Markdown Preview Plus extension before 0.5.7 for Chrome allows remote attackers to inject arbitrary web script or HTML into some web applications via the upload and display of crafted text, markdown, or rst files that are designed to be viewed in the browser as plain text, but that will be converted to HTML without proper sanitization.
How severe is CVE-2017-11593?: CVE-2017-11593 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-11593 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11593?: CVE-2017-11593 affects Ooso Markdown Preview Plus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-11593?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-11593 published?: CVE-2017-11593 was published on 2017-07-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ooso:markdown_preview_plus:*:*:*:*:*:chrome:*:*

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