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TI-2026-07799 Aliases CVE-2026-8877GHSA-6rcp-q8qr-wh4c

Responsive Video Embedder <= 0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Responsive Video Embedder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'rem_video' shortcode in versions up to, and including, 0.1. This is due to insufficient input sanitization and output escaping on user supplied attributes (notably 'id' and 'list') in the video_shortcode() function, which are concatenated directly into an HTML iframe's src attribute without escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00235 14th 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
esiteqResponsive Video Embedderup to 0.1—No fix listedCNA
  • Responsive Video Embedder Vendoresiteq Affected up to 0.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-8877
  2. 2026-10-03 Alias added: GHSA-6rcp-q8qr-wh4c

References

Other 3

  • TI-2023-17015 WordPress WP Report Post Plugin <= 2.1.2 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
  • TI-2023-17012 WordPress WP Report Post Plugin <= 2.1.2 is vulnerable to SQL Injection CVSS 3.1HIGH 8.8

Sources

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