Read the docs
TI-2026-83300 Aliases CVE-2026-105077GHSA-6fr8-w3m2-73v2

Cross-site scripting in WordPress Ad Inserter plugin

Priority LOW 31CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
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 WordPress Ad Inserter plugin through version 2.8.19 contains a cross-site scripting flaw (CWE-79) caused by improper neutralization of input during web page generation. An unauthenticated remote attacker can inject script that runs in a victim's browser, but the attack requires user interaction. The CVSS 3.1 base score is 7.1 (HIGH), with changed scope and low impact to confidentiality, integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-31

Description from the CNA

Unauthenticated Cross Site Scripting (XSS) in Ad Inserter <= 2.8.19 versions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00228 13th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
spacetimeAd Inserterup to 2.8.19—No fix listedCNA
  • Ad Inserter Vendorspacetime Affected up to 2.8.19 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Ad Inserter.

Written with Claude Haiku 5.5 from the sources below · 2026-10-31

Timeline

  1. 2026-10-30 Threatist record created from CVE-2026-105077
  2. 2026-10-30 CISA SSVC decision points changed
  3. 2026-10-30 Priority changed: MEDIUM → LOW
  4. 2026-10-30 Alias added: GHSA-6fr8-w3m2-73v2

References

Other 1

  • TI-2026-83232 Unauthenticated shortcode execution in Ad Inserter WordPress plugin CVSS 3.1MEDIUM 6.5
  • TI-2026-63944 WordPress Ad Inserter plugin <= 2.8.18 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
  • TI-2024-32841 WordPress Ad Inserter plugin <= 2.7.37 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
  • TI-2026-10327 Missing authorization in spacetime Ad Inserter – Ad Manager & AdSense Ads CVSS 3.1MEDIUM 5.3
  • TI-2026-10326 Ad Inserter <= 2.8.16 - Missing Authorization to Block Visibility Bypass via ai_ajax CVSS 3.1MEDIUM 5.3
  • TI-2026-41517 WordPress Ad Inserter plugin <= 2.8.11 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences