Arbitrary Shortcode Execution in Ad Inserter Plugin for WordPress
CVE-2026-102905

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Ad Inserter – Ad Manager & Adsense Ads
Vendor
CVE Published:
30 October 2026

What is CVE-2026-102905?

The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress allows unauthenticated users to execute arbitrary shortcodes due to insufficient validation of user inputs. This vulnerability affects all versions up to and including 2.8.19. If an administrator has configured an ad block with dynamic tags such as {title}, {tag}, {category}, or {smart-tag} for display on search pages, attackers can exploit this flaw to manipulate content and execute malicious code, potentially leading to significant security risks.

Affected Version(s)

Ad Inserter – Ad Manager & AdSense Ads 0 <= 2.8.19

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/ad-inserter/ta...
https://plugins.trac.wordpress.org/browser/ad-inserter/ta...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kuba
.