Fancy Image Show <= 9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
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 Fancy Image Show plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `fancy-img-show` shortcode in all versions up to, and including, 9.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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
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
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-5340
- 2026-10-03 Alias added: GHSA-2v9r-7h3f-vg95
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/131d07ad-4e87-4137-a5df-2b74db1e9ae8?source=cve
- https://plugins.trac.wordpress.org/browser/fancy-image-show/trunk/fancy-image-show.php#L178
- https://plugins.trac.wordpress.org/browser/fancy-image-show/tags/9.1/fancy-image-show.php#L178
- https://plugins.trac.wordpress.org/browser/fancy-image-show/tags/9.1/fancy-image-show.php#L117
More gopiplus vulnerabilities
- TI-2022-23164 WordPress Email posts to subscribers Plugin <= 6.2 is vulnerable to SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2025-31812 WordPress Vertical scroll slideshow gallery v2 plugin <= 9.1 - SQL Injection vulnerability CVSS 3.1HIGH 8.8
- TI-2023-04983 Image horizontal reel scroll slideshow <= 13.2 - Authenticated (Subscriber+) SQL Injection via Shortcode CVSS 3.1HIGH 8.8
- TI-2023-05031 Wp anything slider <= 9.1 - Authenticated (Subscriber+) SQL Injection via Shortcode CVSS 3.1HIGH 8.8
- TI-2023-05030 Popup with fancybox <= 3.5 - Authenticated (Subscriber+) SQL Injection via Shortcode CVSS 3.1HIGH 8.8
- TI-2023-05029 Jquery accordion slideshow <= 8.1 - Authenticated (Subscriber+) SQL Injection via Shortcode CVSS 3.1HIGH 8.8
Sources
- CVE-2026-5340 · CVE Program
- CVE-2026-5340 · NVD
- FIRST EPSS
- GHSA-2v9r-7h3f-vg95 · GitHub Advisory Database · CC BY 4.0
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