CVE-2026-5075

All in One SEO <= 4.9.7 - Authenticated (Contributor+) Sensitive Information Exposure via 'internalOptions' Localized Script Data

2026-05-19 14:51
0x61626390

Strategic Overview

Status
Patched in 4.9.7.1
Affected Plugin
All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights)
Affected Version
<= 4.9.7
CVSS
4.3Medium
Weakness type
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE
CVE-2026-5075
View all All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) vulnerabilities

At a glance

CVE-2026-5075 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the All in One SEO WordPress plugin, affecting versions <= 4.9.7. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 4.9.7.1; sites on affected versions should update now. Disclosed May 2026, reported by 0x61626390.

Vulnerability Overview

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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

All in One SEO <= 4.9.7 carries this weakness at internalOptions, and reaching it takes an account at Contributor level or above. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For All in One SEO the fix is 4.9.7.1: builds <= 4.9.7 are affected, anything from 4.9.7.1 onward is not.

Remediation

Update to version 4.9.7.1, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: All in One SEO 4.9.7.1 closes this, and updating the plugin is the step that ends it.

  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-5075https://www.wordfence.com/threat-intel/vulnerabilities/id/0d8bc203-c17a-4b31-8f9e-695f9e638cdahttps://nvd.nist.gov/vuln/detail/CVE-2026-5075

Related records

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