CVE-2021-20846: Cross-site request forgery (CSRF) vulnerability in Push Notifications for WordPress (Lite) versions prior to 6

Q: How do I fix CVE-2021-20846?

push notifications for wordpress: upgrade to 6.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2021-20846 being exploited?

CVE-2021-20846 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-2021-20846 affect?

CVE-2021-20846 affects push notifications for wordpress. Severity is high (CVSS 8.8). Cross-site request forgery (CSRF) vulnerability in Push Notifications for WordPress (Lite) versions prior to 6.0.1 allows a remote attacker to hijack the authentication of an administrator and conduct an arbitrary operation via a specially

This month

HIGH 8.8UPGRADE

CVE-2021-20846 is a high-severity flaw (CVSS 8.8) affecting push notifications for wordpress. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site request forgery (CSRF) vulnerability in Push Notifications for WordPress (Lite) versions prior to 6.0.1 allows a remote attacker to hijack the authentication of an administrator and conduct an arbitrary operation via a specially crafted web page.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-352
Published	2021-11-24
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: delitestudio

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

Am I affected?

Timeline

2021-11-24 16:15 UTCPublished CVE record published
2026-06-17 03:34 UTCUpdated Record last modified

delitestudio push notifications for wordpress UPGRADE

Affected: < 6.0.1

Fixed in: 6.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy push-notifications-for-wordpress || rpm -q push-notifications-for-wordpress || push-notifications-for-wordpress --version

2. UPGRADE to 6.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade push-notifications-for-wordpress

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade push-notifications-for-wordpress

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-2021-20846?

push notifications for wordpress: upgrade to 6.0.1. Exact commands for each OS are on this page.

Is CVE-2021-20846 being exploited?

CVE-2021-20846 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-2021-20846 affect?

CVE-2021-20846 affects push notifications for wordpress. Severity is high (CVSS 8.8). Cross-site request forgery (CSRF) vulnerability in Push Notifications for WordPress (Lite) versions prior to 6.0.1 allows a remote attacker to hijack the authentication of an administrator and conduct an arbitrary operation via a specially

How urgent is CVE-2021-20846?

Priority 44/100. High severity

Software pages

WordPress vulnerabilities

References

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