cleverplugins SEO Booster Plugin up to 7.4.7 on WordPress handle_oauth_callback access_token/google_email improper authorization

Summaryinfo

A vulnerability categorized as problematic has been discovered in cleverplugins SEO Booster Plugin up to 7.4.7. The affected element is the function handle_oauth_callback. Executing a manipulation of the argument access_token/google_email can lead to improper authorization. This vulnerability is tracked as CVE-2026-15660. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in cleverplugins SEO Booster Plugin up to 7.4.7. It has been declared as problematic. This vulnerability affects the function handle_oauth_callback. The manipulation of the argument access_token/google_email with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity, and availability. CVE summarizes:

The SEO Booster plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 7.4.7. This is due to a missing capability check on the handle_oauth_callback() function which is hooked to admin_init and processes $_GET['access_token'] and $_GET['google_email'] without verifying the caller's role. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the seobooster_access_token, seobooster_google_email, and seobooster_gsc_sites options and delete the seobooster_needs_reauth flag by visiting a crafted /wp-admin/ URL, disrupting the Google Search Console integration and injecting attacker-chosen data into site options via the attacker-supplied token that drives an outbound Google API request whose response is stored.

The advisory is available at wordfence.com. This vulnerability was named CVE-2026-15660 since 07/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/19/2026). This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• cleverplugins

Name

• SEO Booster Plugin

Version

• 7.4.0
• 7.4.1
• 7.4.2
• 7.4.3
• 7.4.4
• 7.4.5
• 7.4.6
• 7.4.7

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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