What is CVE-2021-24709?

CVE-2021-24709 is a medium-severity vulnerability in Awplife Weather Effect, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-10-11.

How severe is CVE-2021-24709?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2021-24709 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Awplife Weather Effect

CVE-2021-24709

The Weather Effect WordPress plugin before 1.3.6 does not properly validate and escape some of its settings (like *_size_leaf, *_flakes_leaf, *_speed) which could lead to Stored Cross-Site Scripting issues

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-10-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (47.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Awplife Weather Effect
Weather Effect – Christmas Santa Snow Falling — versions 1.3.6

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/df74ed76-af9e-47a8-9a4d-c5c57e9e0f91 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-24709?: CVE-2021-24709 is a medium-severity vulnerability in Awplife Weather Effect, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-10-11.
How severe is CVE-2021-24709?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2021-24709 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.