How severe is CVE-2018-10994?

CVE-2018-10994 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-2018-10994 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-10994?

CVE-2018-10994 affects Signal Signal-desktop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-10994?

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

When was CVE-2018-10994 published?

CVE-2018-10994 was published on 2018-05-14 and last updated on 2026-06-17.

CVE-2018-10994

CVE-2018-10994 is a medium-severity vulnerability in Signal Signal-desktop 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% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Signal Signal-desktop
Published: 2018-05-14
Last modified: 2026-06-17

Description

js/views/message_view.js in Open Whisper Signal (aka Signal-Desktop) before 1.10.1 allows XSS via a URL.

Frequently asked questions

What is CVE-2018-10994?: js/views/message_view.js in Open Whisper Signal (aka Signal-Desktop) before 1.10.1 allows XSS via a URL.
How severe is CVE-2018-10994?: CVE-2018-10994 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-2018-10994 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-10994?: CVE-2018-10994 affects Signal Signal-desktop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-10994?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-10994 published?: CVE-2018-10994 was published on 2018-05-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:signal:signal-desktop:*:*:*:*:*:*:*:*

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