Stored cross-site scripting in WordPress Ad Inserter plugin
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Ad Inserter plugin for WordPress by Igor Funa, in versions through 2.8.18, does not neutralize input during web page generation, which allows stored cross-site scripting (CWE-79). A low-privileged attacker can store script that runs in another user's browser when that user views the affected page. The attack requires that user to interact with the page.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Igor Funa Ad Inserter ad-inserter allows Stored XSS.This issue affects Ad Inserter: from n/a through 2.8.18.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Ad Inserter.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-29 Threatist record created from CVE-2026-118094
- 2026-10-29 CISA SSVC decision points changed
- 2026-10-29 Priority changed: MEDIUM → LOW
- 2026-10-29 Alias added: GHSA-v9h6-2x94-f75q
More Igor Funa vulnerabilities
- TI-2023-04281 Ad Inserter <= 2.7.30 - Unauthenticated Sensitive Information Exposure via ai_ajax CVSS 3.1MEDIUM 5.3
- TI-2026-80316 Reflected cross-site scripting in WordPress Ad Inserter plugin CVSS 3.1MEDIUM 6.5
- TI-2026-80068 Ad Inserter WordPress plugin cross-site scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2026-70910 Stored cross-site scripting in WordPress Ad Inserter plugin CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-118094 · CVE Program
- CVE-2026-118094 · NVD
- FIRST EPSS
- GHSA-v9h6-2x94-f75q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences