CVE-2021-24683: Weather Effect < 1.3.4 - CSRF to Stored Cross-Site Scripting

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-10-11 · updated 2026-06-17
Weakness: CWE-79

Description

The Weather Effect WordPress plugin before 1.3.4 does not have any CSRF checks in place when saving its settings, and do not validate or escape them, which could lead to Stored Cross-Site Scripting issue.

Affected products

Weather Effect – Christmas Santa Snow Falling: before 1.3.4 — fixed in 1.3.4

How to fix

Upgrade to a fixed version: Weather Effect – Christmas Santa Snow Falling 1.3.4. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/54f95b51-5804-4bee-9e4a-f73b8ef9bbd5
https://wpscan.com/vulnerability/54f95b51-5804-4bee-9e4a-f73b8ef9bbd5

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