CVE-2021-24834 json
YOP Poll < 6.3.1 - Author+ Stored Cross-Site Scripting via Options Module
published 2021-11-17 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11746
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
1.53% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Unknown YOP Poll
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset/2605368
patch, third-party-advisory
-
wpscan.com
/vulnerability/72f58b14-e5cb-4f1c-a16f-621238c6ebbf
third-party-advisory
-
fortiguard.com
/zeroday/FG-VD-21-053
third-party-advisory
Sources
- CVE List CVE-2021-24834
- NVD CVE-2021-24834
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