CVE-2021-24616: The AddToAny Share Buttons WordPress plugin before 1.7.48 does not escape its Image URL button setting, which

Q: How do I fix CVE-2021-24616?

addtoany share buttons: upgrade to 1.7.48. Exact commands for each OS are on this page.

Q: Is CVE-2021-24616 being exploited?

CVE-2021-24616 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-2021-24616 affect?

CVE-2021-24616 affects addtoany share buttons. Severity is medium (CVSS 4.8). The AddToAny Share Buttons WordPress plugin before 1.7.48 does not escape its Image URL button setting, which could lead allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallow

Q: How urgent is CVE-2021-24616?

Priority 35/100. Public exploit reference

Routine

MEDIUM 4.8UPGRADE

CVE-2021-24616 is a medium-severity flaw (CVSS 4.8) affecting addtoany share buttons. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The AddToAny Share Buttons WordPress plugin before 1.7.48 does not escape its Image URL button setting, which could lead allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-11-08
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: addtoany

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

Am I affected?

Timeline

2021-11-08 18:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

addtoany addtoany share buttons UPGRADE

Affected: < 1.7.48

Fixed in: 1.7.48

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy addtoany-share-buttons || rpm -q addtoany-share-buttons || addtoany-share-buttons --version

2. UPGRADE to 1.7.48 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade addtoany-share-buttons

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade addtoany-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-2021-24616?

addtoany share buttons: upgrade to 1.7.48. Exact commands for each OS are on this page.

Is CVE-2021-24616 being exploited?

CVE-2021-24616 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-2021-24616 affect?

CVE-2021-24616 affects addtoany share buttons. Severity is medium (CVSS 4.8). The AddToAny Share Buttons WordPress plugin before 1.7.48 does not escape its Image URL button setting, which could lead allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallow

How urgent is CVE-2021-24616?

Priority 35/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2021-24568 MEDIUM 5.4 UPGRADE The AddToAny Share Buttons WordPress plugin before 1.7.46 does not sanitise its Sharing Header setting when ou

References

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