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Ad Inserter <= 2.8.18 - Reflected Cross-Site Scripting via 's' Search Parameter

Type: advisorySource: Official CVE List1 source record

The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 's' Search Parameter in all versions up to, and including, 2.8.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires that a site administrator has configured at least one Ad Inserter block using the {title} or {short-title} placeholder with that block enabled for search pages, which is a standard, documented plugin feature.

Announced Source revision 1
Original source ↗

CVE-2026-89427

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-89427

Ad Inserter – Ad Manager & AdSense Ads

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "spacetime",
    "product": "Ad Inserter – Ad Manager & AdSense Ads",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "2.8.18"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-89427

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#8445 · Revision 1
Added to Heist Feed
Publisher date
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