How severe is CVE-2019-19708?

CVE-2019-19708 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-2019-19708 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-2019-19708?

CVE-2019-19708 affects Mediawiki Visual Editor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19708?

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

When was CVE-2019-19708 published?

CVE-2019-19708 was published on 2019-12-11 and last updated on 2026-06-17.

CVE-2019-19708

CVE-2019-19708 is a medium-severity vulnerability in Mediawiki Visual Editor 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% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mediawiki Visual Editor
Published: 2019-12-11
Last modified: 2026-06-17

Description

The VisualEditor extension through 1.34 for MediaWiki allows XSS via pasted content containing an element with a data-ve-clipboard-key attribute.

Frequently asked questions

What is CVE-2019-19708?: The VisualEditor extension through 1.34 for MediaWiki allows XSS via pasted content containing an element with a data-ve-clipboard-key attribute.
How severe is CVE-2019-19708?: CVE-2019-19708 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-2019-19708 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-2019-19708?: CVE-2019-19708 affects Mediawiki Visual Editor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19708?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-19708 published?: CVE-2019-19708 was published on 2019-12-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mediawiki:visual_editor:*:*:*:*:*:mediawiki:*:*

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