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TI-2026-83530 Aliases CVE-2026-76010GHSA-3x55-4c6j-rgh3

Remote code execution in NextGEN Gallery plugin for WordPress

Priority MEDIUM 41CWE-434Published · Updated

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-434.

Summary

The Photo Gallery, Sliders, Proofing and Themes (NextGEN Gallery) plugin for WordPress is affected in all versions up to and including 4.4.1. Unrestricted mass assignment of caller-supplied meta_data keys and missing path containment in the render_image function allow code execution on the server (CWE-434). An authenticated attacker with custom-level access or above, who owns at least one gallery, can exploit this over the network with low complexity.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.4.1 via the render_image function. This is due to unrestricted mass assignment of caller-supplied meta_data keys onto the image model combined with missing realpath containment in path construction and a bypassable signature check on the public image delivery route. This makes it possible for authenticated attackers, with custom-level access and above, to execute code on the server. Exploitation requires the authenticated attacker to own at least one NextGEN gallery — a condition that can be satisfied by any Subscriber who was ever granted the 'NextGEN Manage gallery' capability, and that access is retained indefinitely due to the stored gallery-author equality fallback in _can_manage_gallery() even after the capability is revoked.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00772 55th 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

VendorProductAffected versionsFixed inStatusSource
smubPhoto Gallery, Sliders, Proofing and Themes – NextGEN Galleryup to 4.4.1—No fix listedCNA
  • Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery Vendorsmub Affected up to 4.4.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Photo Gallery, Sliders, Proofing and Themes (NextGEN Gallery).

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Timeline

  1. 2026-10-31 Threatist record created from CVE-2026-76010
  2. 2026-10-31 Alias added: GHSA-3x55-4c6j-rgh3
  3. 2026-11-02 Priority changed: MEDIUM → LOW
  4. 2026-11-02 CISA SSVC decision points changed
  5. 2026-11-02 Priority changed: LOW → MEDIUM

References

Other 8

  • TI-2026-07755 WPCode <= 2.3.5 - Authenticated (Author+) Remote Code Execution via CPT Capability Bypass via XML-RPC wp.newPost CVSS 3.1HIGH 8.8
  • TI-2026-78567 PHP object injection in Duplicator and Duplicator Pro plugins CVSS 3.1HIGH 8.8
  • TI-2026-01649 ExactMetrics 8.6.0 - 9.0.2 - Authenticated (Custom) Insecure Direct Object Reference to Arbitrary Plugin Installation CVSS 3.1HIGH 8.8
  • TI-2026-01160 Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 4.0.4 - Authenticated (Author+) Local File Inclusion CVSS 3.1HIGH 8.8
  • TI-2025-12465 Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 3.59.12 - Authenticated… CVSS 3.1HIGH 8.8
  • TI-2026-01650 Improper privilege management in smub ExactMetrics – Google Analytics Dashboard for… CVSS 3.1HIGH 8.8
See all 67 →

Sources

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