CVE-2021-24558: The pspin_duplicate_post_save_as_new_post function of the Project Status WordPress plugin through 1.6 does not

Q: How do I fix CVE-2021-24558?

project status: upgrade to newer than 1.6. Exact commands for each OS are on this page.

Q: Is CVE-2021-24558 being exploited?

CVE-2021-24558 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-2021-24558 affect?

CVE-2021-24558 affects project status. Severity is medium (CVSS 5.4). The pspin_duplicate_post_save_as_new_post function of the Project Status WordPress plugin through 1.6 does not sanitise, validate or escape the post GET parameter passed to it before outputting it in an error message when the related post d

Q: How urgent is CVE-2021-24558?

Priority 37/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2021-24558 is a medium-severity flaw (CVSS 5.4) affecting project status. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The pspin_duplicate_post_save_as_new_post function of the Project Status WordPress plugin through 1.6 does not sanitise, validate or escape the post GET parameter passed to it before outputting it in an error message when the related post does not exist, leading to a reflected XSS issue

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-08-23
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: 3.7designs

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

Am I affected?

Timeline

2021-08-23 12:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

3.7designs project status UPGRADE

Affected: <= 1.6

Fixed in: newer than 1.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy project-status || rpm -q project-status || project-status --version

2. UPGRADE to newer than 1.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade project-status

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade project-status

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-2021-24558?

project status: upgrade to newer than 1.6. Exact commands for each OS are on this page.

Is CVE-2021-24558 being exploited?

CVE-2021-24558 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-2021-24558 affect?

CVE-2021-24558 affects project status. Severity is medium (CVSS 5.4). The pspin_duplicate_post_save_as_new_post function of the Project Status WordPress plugin through 1.6 does not sanitise, validate or escape the post GET parameter passed to it before outputting it in an error message when the related post d

How urgent is CVE-2021-24558?

Priority 37/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

← Back to latest CVEs