CVE-2021-24834 YOP Poll < 6.3.1 - Author+ Stored Cross-Site Scripting via Options Module

What is CVE-2021-24834?

CVE-2021-24834 is a medium-severity cross-site scripting vulnerability in Unknown YOP Poll, published on 17 Nov 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The YOP Poll WordPress plugin before 6.3.1 is affected by a stored Cross-Site Scripting vulnerability which exists in the Create Poll - Options 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 custom label parameters - vote button label , results link label and back to vote caption label.

Weakness: CWE-79

Which versions are affected by CVE-2021-24834?

It affects 1 product.

Products include Yop-Poll Yop Poll.

How do I fix CVE-2021-24834?

No fix has been published for CVE-2021-24834 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-24834 being exploited?

There is no known exploitation of CVE-2021-24834 in the wild and no public exploit code.

Other vulnerabilities in Unknown YOP Poll

• CVE-2021-24454 YOP Poll < 6.2.8 - Stored Cross-Site Scripting Medium 6.1
• CVE-2021-24833 YOP Poll < 6.3.1 - Author+ Stored Cross-Site Scripting via Preview Module Medium 5.4
• CVE-2017-2127 Cross-site scripting in YOP Poll Medium 5.4
• CVE-2023-6109 YOP Poll <= 6.5.26 - Race Condition to Vote Manipulation Medium 5.3
• CVE-2022-1600 YOP Poll < 6.4.3 - IP Spoofing Medium 5.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4rg7-7m6h-7jqr.