CVE-2021-24833

Name: CVE-2021-24833
Creator: NVD / NIST
Published: 2021-11-17T11:15:08.103+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 1.09%

Last modified Jun 17, 2026

CVE-2021-24833 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The YOP Poll WordPress plugin before 6.3.1 is affected by a stored Cross-Site Scripting vulnerability, which exists in the Admin preview module where a user with a role as low as author is allowed to execute arbitrary script code within the context of the application. This vulnerability is due to insufficient validation of question and answer text parameters in Create Poll module.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

Description

The YOP Poll WordPress plugin before 6.3.1 is affected by a stored Cross-Site Scripting vulnerability, which exists in the Admin preview module where a user with a role as low as author is allowed to execute arbitrary script code within the context of the application. This vulnerability is due to insufficient validation of question and answer text parameters in Create Poll module.

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

1.09%

61.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Yop-Poll	Yop Poll	< 6.3.1

References

https://plugins.trac.wordpress.org/changeset/2605368Patch, Third Party Advisory
https://wpscan.com/vulnerability/7cb39087-fbab-463d-9592-003e3fca6d34Third Party Advisory
https://www.fortiguard.com/zeroday/FG-VD-21-052Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2605368Patch, Third Party Advisory
https://wpscan.com/vulnerability/7cb39087-fbab-463d-9592-003e3fca6d34Third Party Advisory
https://www.fortiguard.com/zeroday/FG-VD-21-052Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-24833?

How severe is CVE-2021-24833?

CVE-2021-24833 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24833?

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-2021-24833?

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

Scan your code now

Source: NVD / NIST