How severe is CVE-2021-24521?

CVE-2021-24521 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-24521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24521?

CVE-2021-24521 affects Wow-estore Side Menu. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24521?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-24521 published?

CVE-2021-24521 was published on 2021-08-09 and last updated on 2026-06-17.

CVE-2021-24521

CVE-2021-24521 is a high-severity vulnerability in Wow-estore Side Menu with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Wow-estore Side Menu
Published: 2021-08-09
Last modified: 2026-06-17

Description

The Side Menu Lite – add sticky fixed buttons WordPress plugin before 2.2.1 does not properly sanitize input values from the browser when building an SQL statement. Users with the administrator role or permission to manage this plugin could perform an SQL Injection attack.

Frequently asked questions

What is CVE-2021-24521?: The Side Menu Lite – add sticky fixed buttons WordPress plugin before 2.2.1 does not properly sanitize input values from the browser when building an SQL statement. Users with the administrator role or permission to manage this plugin could perform an SQL Injection attack.
How severe is CVE-2021-24521?: CVE-2021-24521 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-24521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24521?: CVE-2021-24521 affects Wow-estore Side Menu. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-24521 published?: CVE-2021-24521 was published on 2021-08-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wow-estore:side_menu:*:*:*:*:lite:wordpress:*:*

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