CVE-2021-34646
CriticalPublic exploitBooster for WooCommerce <= 5.4.3 - Authentication Bypass
Published Aug 31, 2021 · Updated May 5, 2025 · Also known as af37f301-d97f-47d3-b6a8-88cb41344541
Key Facts
Patch immediately- CVE-2021-34646 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Booster For Woocommerce, woocommerce-jetpack (wordpress-plugin), Booster for WooCommcerce.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 51% probability of exploitation in the next 30 days.
- Fixed versions are available, including Booster For Woocommerce <=5.4.3, woocommerce-jetpack 5.4.4, Booster For Woocommerce 5.4.3.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
51%
Higher than 98.9% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2021-34646 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Versions up to, and including, 5.4.3, of the Booster for WooCommerce WordPress plugin are vulnerable to authentication bypass via the process_email_verification function due to a random token generation weakness in the reset_and_mail_activation_link function found in the ~/includes/class-wcj-emails-verification.php file. This allows attackers to impersonate users and trigger an email address verification for arbitrary accounts, including administrative accounts, and automatically be logged in as that user, including any site administrators. This requires the Email Verification module to be active in the plugin and the Login User After Successful Verification setting to be enabled, which it is by default.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Booster For WoocommerceBooster | See advisory | 5.4.3 |
| woocommerce-jetpackwordpress-plugin | See advisory | 5.4.4 |
| Booster for WooCommcerce | >= 5.4.3 | n/a |
Patched Releases
Booster For Woocommerce
<=5.4.3
woocommerce-jetpack
5.4.4
Timeline
Publicly disclosed
Aug 31, 2021
Last updated
May 5, 2025
Weakness Type
- CWE-288 Authentication Bypass Using an Alternate Path or Channel
- CWE-290 Authentication Bypass by Spoofing
- CWE-330 Use of Insufficiently Random Values
References
- advisoryhttps://latesthackingnews.com/
- advisoryhttps://latesthackingnews.com/2021/08/28/multiple-vulnerabilities-spotted-in-elfinder-file-manager-wordpress-plugin/
- advisoryhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-24437
- advisoryhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-24438
- advisoryhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-24528
FAQ
Common Questions.
Versions up to, and including, 5.4.3, of the Booster for WooCommerce WordPress plugin are vulnerable to authentication bypass via the process_email_verification function due to a random token generation weakness in the reset_and_mail_activation_link function found in the ~/includes/class-wcj-emails-verification.php fi…
Affected: Booster For Woocommerce; woocommerce-jetpack (wordpress-plugin); Booster for WooCommcerce versions >= 5.4.3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Booster For Woocommerce <=5.4.3, woocommerce-jetpack 5.4.4, Booster For Woocommerce 5.4.3.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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