TI-2026-07795 Aliases CVE-2026-8873 GHSA-m2jj-4c8g-xgj3

Content Slideshow <= 2.4.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

LOW 28CWE-79Published 2026-05-27 · Updated 2026-05-27

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 Content Slideshow plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 2.4.1 due to insufficient input sanitization and output 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 0.00187 8th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
celloexpressions	Content Slideshow	up to 2.4.1	—	No fix listed	CNA

Content Slideshow Vendorcelloexpressions Affected up to 2.4.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-8873
2026-10-03 Alias added: GHSA-m2jj-4c8g-xgj3

References

Other 3

TI-2024-25045 WordPress Floating Social Media Links plugin <= 1.5.2 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 5.9

Sources

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