CVE-2021-24210

Name: CVE-2021-24210
Creator: NVD / NIST
Published: 2021-04-05T19:15:17.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 3.07%

Last modified Jun 17, 2026

CVE-2021-24210 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. There is an open redirect in the PhastPress WordPress plugin before 1.111 that allows an attacker to malform a request to a page with the plugin and then redirect the victim to a malicious page. There is also a support comment from another user one year ago (https://wordpress.org/support/topic/phast-php-used-for-remote-fetch/) that says that the php involved in the request only go to whitelisted pages but it's possible to redirect the victim to any domain.. EPSS estimates a 3.07% chance of exploitation in the next 30 days.

Description

There is an open redirect in the PhastPress WordPress plugin before 1.111 that allows an attacker to malform a request to a page with the plugin and then redirect the victim to a malicious page. There is also a support comment from another user one year ago (https://wordpress.org/support/topic/phast-php-used-for-remote-fetch/) that says that the php involved in the request only go to whitelisted pages but it's possible to redirect the victim to any domain.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

3.07%

86.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Kiboit	Phastpress	< 1.111

References

https://plugins.trac.wordpress.org/changeset/2497610/Patch, Third Party Advisory
https://wpscan.com/vulnerability/9b3c5412-8699-49e8-b60c-20d2085857fbExploit, Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2497610/Patch, Third Party Advisory
https://wpscan.com/vulnerability/9b3c5412-8699-49e8-b60c-20d2085857fbExploit, Third Party Advisory

Timeline

Published: Apr 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24210?

How severe is CVE-2021-24210?

CVE-2021-24210 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 3.07% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24210?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-24210?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST