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% (54th 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% (54th 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% (54th 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:*:*

More vulnerabilities in Booster Booster For Woocommerce

CVE-2021-34646 — Critical (CVSS 9.8): Versions up to, and including, 5.4.3, of the Booster for WooCommerce WordPress plugin are vulnerable to authentication…
CVE-2024-1986 — High (CVSS 8.8): The Booster Elite for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type…
CVE-2022-4017 — High (CVSS 8.8): The Booster for WooCommerce WordPress plugin before 6.0.1, Booster Plus for WooCommerce WordPress plugin before 6.0.1,…
CVE-2024-13342 — High (CVSS 8.1): The Booster for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type…
CVE-2024-13744 — High (CVSS 8.1): The Booster for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type…
CVE-2022-3763 — High (CVSS 8.1): The Booster for WooCommerce WordPress plugin before 5.6.7, Booster Plus for WooCommerce WordPress plugin before 5.6.5,…

All CVEs affecting Booster Booster For Woocommerce →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2026-106102 — Critical (CVSS 10.0): Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.22.0, the SSR-only…
CVE-2026-59167 — Critical (CVSS 10.0): SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies. Prior to 2.47.11,…
CVE-2026-85061 — Critical (CVSS 10.0): MapLibre GL JS is an interactive vector tile map library for web browsers. Prior to 6.4.1, DOM.sanitize() in…
CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →