How severe is CVE-2021-24999?

CVE-2021-24999 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-24999 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24999?

CVE-2021-24999 affects Booster Booster For Woocommerce. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24999?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-24999 published?

CVE-2021-24999 was published on 2022-01-03 and last updated on 2026-06-17.

CVE-2021-24999

CVE-2021-24999 is a medium-severity vulnerability in Booster Booster For Woocommerce with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 2.6
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Booster Booster For Woocommerce
Published: 2022-01-03
Last modified: 2026-06-17

Description

The Booster for WooCommerce WordPress plugin before 5.4.9 does not sanitise and escape the wcj_notice parameter before outputting it back in the admin dashboard when the Pdf Invoicing module is enabled, leading to a Reflected Cross-Site Scripting

Frequently asked questions

What is CVE-2021-24999?: The Booster for WooCommerce WordPress plugin before 5.4.9 does not sanitise and escape the wcj_notice parameter before outputting it back in the admin dashboard when the Pdf Invoicing module is enabled, leading to a Reflected Cross-Site Scripting
How severe is CVE-2021-24999?: CVE-2021-24999 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-24999 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24999?: CVE-2021-24999 affects Booster Booster For Woocommerce. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24999?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24999 published?: CVE-2021-24999 was published on 2022-01-03 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/8527f4fe-312f-45c1-ae4c-7e799702fc26

Affected products (1)

cpe:2.3:a:booster:booster_for_woocommerce:*:*:*:*:*:wordpress:*:*

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