All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic: Sensitive information exposure
All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic is affected by sensitive information exposure. Exploitation requires at least contributor-level access. Successful exploitation can disclose data that should not be available to the caller. The published affected range is <= 4.9.7.
- Component
- All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic
- Plugin slug
all-in-one-seo- Affected
- <= 4.9.7
- Safe version
> 4.9.7- Published
- May 20, 2026
This CVE was published May 20, 2026 and is one of 8 known issues for this plugin.
Update, patch or deactivate.
Update All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic to a release after 4.9.7, or disable and remove it until a fixed version is available.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The All in One SEO plugin for WordPress is vulnerable to Sensitive Information Exposure via 'internalOptions' localized script data in versions up to, and including, 4.9.7 due to sensitive internal option data being passed to wp_localize_script() in post editor contexts without effective masking for low-privilege users. This makes it possible for authenticated attackers, with contributor-level access and above, to view configured API/OAuth tokens and license-related values from page source.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N