TI-2026-83297 Aliases CVE-2026-78527 GHSA-wrw7-7jpm-q2cw

PHP object injection in GS Testimonial Slider WordPress plugin

MEDIUM 40CWE-502Published 2026-10-30 · Updated 2026-10-30

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

GS Plugins GS Testimonial Slider versions through 3.3.10 contain a PHP object injection flaw (CWE-502) in which untrusted data is deserialized. A remote attacker with contributor privileges can trigger the unserialization of crafted input. Successful exploitation can have a high impact on confidentiality, integrity and availability.

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

Description from the CNA

Contributor PHP Object Injection in GS Testimonial Slider <= 3.3.10 versions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00374 31st 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: Total

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
GS Plugins	GS Testimonial Slider	up to 3.3.10	—	No fix listed	CNA

GS Testimonial Slider VendorGS Plugins Affected up to 3.3.10 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for GS Testimonial Slider.

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

Timeline

2026-10-30 Threatist record created from CVE-2026-78527
2026-10-30 Alias added: GHSA-wrw7-7jpm-q2cw
2026-10-30 CISA SSVC decision points changed
2026-10-30 Priority changed: MEDIUM → LOW
2026-11-01 Priority changed: LOW → MEDIUM

References

Other 1

https://patchstack.com/database/wordpress/plugin/gs-testimonial/vulnerability/wordpress-gs-testimonial-slider-plugin-3-3-10-php-object-injection-vulnerability?_s_id=cve

TI-2023-00512 GS Books Showcase < 1.3.1 - Contributor+ Stored XSS CVSS 3.1MEDIUM 6.8
TI-2023-00530 GS Portfolio for Envato < 1.4.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
TI-2023-00511 GS Filterable Portfolio < 1.6.1 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
TI-2023-00510 GS Insever Portfolio < 1.4.5 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
TI-2023-00466 GS Products Slider for WooCommerce < 1.5.9 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
TI-2022-04225 GS Logo Slider < 3.3.8 - Contributor+ Stored XSS in Shortcode CVSS 3.1MEDIUM 5.4

See all 26 →

Sources

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