CVE-2024-2721: Deserialization of Untrusted Data vulnerability in Social Media Share Buttons By Sygnoos Social Media Share Bu

Q: How do I fix CVE-2024-2721?

social media share buttons: upgrade to newer than 2.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2024-2721 being exploited?

CVE-2024-2721 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-2721 affect?

CVE-2024-2721 affects social media share buttons. Severity is high (CVSS 8.2). Deserialization of Untrusted Data vulnerability in Social Media Share Buttons By Sygnoos Social Media Share Buttons.This issue affects Social Media Share Buttons: from n/a through 2.1.0.

This month

HIGH 8.2UPGRADE

CVE-2024-2721 is a high-severity flaw (CVSS 8.2) affecting social media share buttons. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Deserialization of Untrusted Data vulnerability in Social Media Share Buttons By Sygnoos Social Media Share Buttons.This issue affects Social Media Share Buttons: from n/a through 2.1.0.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-502
Published	2024-03-20
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: sygnoos

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-03-20 12:15 UTCPublished CVE record published
2026-06-17 07:25 UTCUpdated Record last modified

sygnoos social media share buttons UPGRADE

Affected: <= 2.1.0

Fixed in: newer than 2.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy social-media-share-buttons || rpm -q social-media-share-buttons || social-media-share-buttons --version

2. UPGRADE to newer than 2.1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade social-media-share-buttons

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade social-media-share-buttons

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-2721?

social media share buttons: upgrade to newer than 2.1.0. Exact commands for each OS are on this page.

Is CVE-2024-2721 being exploited?

CVE-2024-2721 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-2721 affect?

CVE-2024-2721 affects social media share buttons. Severity is high (CVSS 8.2). Deserialization of Untrusted Data vulnerability in Social Media Share Buttons By Sygnoos Social Media Share Buttons.This issue affects Social Media Share Buttons: from n/a through 2.1.0.

How urgent is CVE-2024-2721?

Priority 42/100. High severity

Related CVEs

CVE-2021-36849 LOW 3.4 UPGRADE Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in René Hermenau's Social Media Share B

References

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