How severe is CVE-2021-43785?

CVE-2021-43785 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2021-43785 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43785?

CVE-2021-43785 affects Emoji Button Project Emoji Button. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43785?

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-2021-43785 published?

CVE-2021-43785 was published on 2021-11-26 and last updated on 2026-06-17.

CVE-2021-43785

CVE-2021-43785 is a high-severity vulnerability in Emoji Button Project Emoji Button with a CVSS 3.x base score of 7.6. 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: High (CVSS 3.x base score 7.6)
CVSS v2: 4.3
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Emoji Button Project Emoji Button
Published: 2021-11-26
Last modified: 2026-06-17

Description

@joeattardi/emoji-button is a Vanilla JavaScript emoji picker component. In affected versions there are two vectors for XSS attacks: a URL for a custom emoji, and an i18n string. In both of these cases, a value can be crafted such that it can insert a `script` tag into the page and execute malicious code.

Frequently asked questions

What is CVE-2021-43785?: @joeattardi/emoji-button is a Vanilla JavaScript emoji picker component. In affected versions there are two vectors for XSS attacks: a URL for a custom emoji, and an i18n string. In both of these cases, a value can be crafted such that it can insert a `script` tag into the page and execute malicious code.
How severe is CVE-2021-43785?: CVE-2021-43785 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2021-43785 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43785?: CVE-2021-43785 affects Emoji Button Project Emoji Button. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43785?: 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-2021-43785 published?: CVE-2021-43785 was published on 2021-11-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:emoji_button_project:emoji_button:*:*:*:*:*:node.js:*:*

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