CVE-2021-24681: The Duplicate Page WordPress plugin through 4.4.2 does not sanitise or escape the Duplicate Post Suffix settin

Q: How do I fix CVE-2021-24681?

duplicate page: upgrade to newer than 4.4.2. Exact commands for each OS are on this page.

Q: Is CVE-2021-24681 being exploited?

CVE-2021-24681 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-2021-24681 affect?

CVE-2021-24681 affects duplicate page. Severity is medium (CVSS 4.8). The Duplicate Page WordPress plugin through 4.4.2 does not sanitise or escape the Duplicate Post Suffix settings before outputting it, which could allow high privilege users to perform Stored Cross-Site Scripting attacks even when the unfil

Q: How urgent is CVE-2021-24681?

Priority 37/100. Public exploit reference

Routine

MEDIUM 4.8UPGRADE

CVE-2021-24681 is a medium-severity flaw (CVSS 4.8) affecting duplicate page. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Duplicate Page WordPress plugin through 4.4.2 does not sanitise or escape the Duplicate Post Suffix settings before outputting it, which could allow high privilege users to perform Stored 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	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-10-11
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: duplicatepro

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

Am I affected?

Timeline

2021-10-11 11:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

duplicatepro duplicate page UPGRADE

Affected: <= 4.4.2

Fixed in: newer than 4.4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy duplicate-page || rpm -q duplicate-page || duplicate-page --version

2. UPGRADE to newer than 4.4.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade duplicate-page

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade duplicate-page

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Duplicate Page WordPress - Stored Cross-Site Scripting

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-2021-24681?

duplicate page: upgrade to newer than 4.4.2. Exact commands for each OS are on this page.

Is CVE-2021-24681 being exploited?

CVE-2021-24681 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-2021-24681 affect?

CVE-2021-24681 affects duplicate page. Severity is medium (CVSS 4.8). The Duplicate Page WordPress plugin through 4.4.2 does not sanitise or escape the Duplicate Post Suffix settings before outputting it, which could allow high privilege users to perform Stored Cross-Site Scripting attacks even when the unfil

How urgent is CVE-2021-24681?

Priority 37/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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