How severe is CVE-2021-36849?

CVE-2021-36849 has a CVSS 3.x base score of 3.4, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-36849 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36849?

CVE-2021-36849 affects Social Media Share Buttons Project Social Media Share Buttons. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36849?

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

When was CVE-2021-36849 published?

CVE-2021-36849 was published on 2022-07-20 and last updated on 2026-06-17.

CVE-2021-36849

CVE-2021-36849 is a low-severity vulnerability in Social Media Share Buttons Project Social Media Share Buttons with a CVSS 3.x base score of 3.4. 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: Low (CVSS 3.x base score 3.4)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Social Media Share Buttons Project Social Media Share Buttons
Published: 2022-07-20
Last modified: 2026-06-17

Description

Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in René Hermenau's Social Media Share Buttons plugin <= 3.8.1 at WordPress.

Frequently asked questions

What is CVE-2021-36849?: Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in René Hermenau's Social Media Share Buttons plugin <= 3.8.1 at WordPress.
How severe is CVE-2021-36849?: CVE-2021-36849 has a CVSS 3.x base score of 3.4, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-36849 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36849?: CVE-2021-36849 affects Social Media Share Buttons Project Social Media Share Buttons. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36849?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36849 published?: CVE-2021-36849 was published on 2022-07-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:social_media_share_buttons_project:social_media_share_buttons:*:*:*:*:*:wordpress:*:*

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