Vulnerability · Published Oct 30, 2026 · Assigned by Wordfence

CVE-2026-102905Ad Inserter <= 2.8.19 - Unauthenticated Arbitrary Shortcode Execution via 's' Search Parameter

Medium 6.5

In plain English

A medium-severity code injection in Ad Inserter – Ad Manager & AdSense Ads from spacetime. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.4%top 63.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.8.19 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. Exploitation requires an administrator to have configured an ad block containing a dynamic tag such as {title}, {tag}, {category}, or {smart-tag} with display enabled on search pages, which is a normal and documented plugin configuration.

Affected products (as reported)

Vendor	Product	Versions
spacetime	Ad Inserter – Ad Manager & AdSense Ads	0 – through 2.8.19

Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References