CVE-2021-24697: Simple Download Monitor < 3.9.5 - Reflected Cross-Site Scripting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-11-08 · updated 2026-06-17
Weakness: CWE-79

Description

The Simple Download Monitor WordPress plugin before 3.9.5 does not escape the 1) sdm_active_tab GET parameter and 2) sdm_stats_start_date/sdm_stats_end_date POST parameters before outputting them back in attributes, leading to Reflected Cross-Site Scripting issues

Affected products

Simple Download Monitor: before 3.9.5 — fixed in 3.9.5

How to fix

Upgrade to a fixed version: Simple Download Monitor 3.9.5. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/ef9ae513-6c29-45c2-b5ae-4a06a217c499
https://wpscan.com/vulnerability/ef9ae513-6c29-45c2-b5ae-4a06a217c499

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