CVE-2021-24751

Name: CVE-2021-24751
Creator: NVD / NIST
Published: 2021-11-29T09:15:07.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.60%

Last modified Jun 17, 2026

CVE-2021-24751 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The GenerateBlocks WordPress plugin before 1.4.0 does not validate the generateblocks/container block's tagName attribute, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks.. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

Description

The GenerateBlocks WordPress plugin before 1.4.0 does not validate the generateblocks/container block's tagName attribute, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.60%

44.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Generateblocks	Generateblocks	< 1.4.0

References

https://wpscan.com/vulnerability/e0131980-d2d3-4780-8a68-a81ee8c90b7aExploit, Third Party Advisory
https://wpscan.com/vulnerability/e0131980-d2d3-4780-8a68-a81ee8c90b7aExploit, Third Party Advisory

Timeline

Published: Nov 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24751?

How severe is CVE-2021-24751?

CVE-2021-24751 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24751?

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-2021-24751?

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

Scan your code now

Source: NVD / NIST