CVE-2021-24482: The Related Posts for WordPress plugin through 2.0.4 does not sanitise its heading_text and CSS settings, allo

Q: How do I fix CVE-2021-24482?

related posts: upgrade to newer than 2.0.4. Exact commands for each OS are on this page.

Q: Is CVE-2021-24482 being exploited?

CVE-2021-24482 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-2021-24482 affect?

CVE-2021-24482 affects related posts. Severity is medium (CVSS 4.8). The Related Posts for WordPress plugin through 2.0.4 does not sanitise its heading_text and CSS settings, allowing high privilege users (admin) to set XSS payloads in them, leading to Stored Cross-Site Scripting issues.

Q: How urgent is CVE-2021-24482?

Priority 35/100. Public exploit reference

Routine

MEDIUM 4.8UPGRADE

CVE-2021-24482 is a medium-severity flaw (CVSS 4.8) affecting related posts. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Related Posts for WordPress plugin through 2.0.4 does not sanitise its heading_text and CSS settings, allowing high privilege users (admin) to set XSS payloads in them, leading to Stored Cross-Site Scripting issues.

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 47%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-07-19
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: never5

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

Am I affected?

Timeline

2021-07-19 11:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

never5 related posts UPGRADE

Affected: <= 2.0.4

Fixed in: newer than 2.0.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy related-posts || rpm -q related-posts || related-posts --version

2. UPGRADE to newer than 2.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade related-posts

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade related-posts

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-2021-24482?

related posts: upgrade to newer than 2.0.4. Exact commands for each OS are on this page.

Is CVE-2021-24482 being exploited?

CVE-2021-24482 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-2021-24482 affect?

CVE-2021-24482 affects related posts. Severity is medium (CVSS 4.8). The Related Posts for WordPress plugin through 2.0.4 does not sanitise its heading_text and CSS settings, allowing high privilege users (admin) to set XSS payloads in them, leading to Stored Cross-Site Scripting issues.

How urgent is CVE-2021-24482?

Priority 35/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2024-0592 MEDIUM 5.4 UPGRADE The Related Posts for WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versio
CVE-2022-3506 MEDIUM 5.4 UPGRADE Cross-site Scripting (XSS) - Stored in GitHub repository barrykooij/related-posts-for-wp prior to 2.1.3.
CVE-2021-24180 MEDIUM 5.4 UPGRADE Unvalidated input and lack of output encoding within the Related Posts for WordPress plugin before 2.0.4 lead
CVE-2015-9361 MEDIUM 6.1 UPGRADE The Related Posts plugin before 1.8.2 for WordPress has XSS via add_query_arg() and remove_query_arg().
CVE-2013-3477 MEDIUM 6.8 UPGRADE Cross-site request forgery (CSRF) vulnerability in the Related Posts by Zemanta plugin before 1.3.2 for WordPr

References

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