# CVE-2026-76010: Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 4.4.1 - Authenticated (Custom+) Remote Code Execution via XML-RPC 'meta_data' Mass Assignment and Path Traversal

Status: published. Published: 2026-10-31. Updated: 2026-11-02.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- smub / Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery: ≥ 0; ≤ 4.4.1 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: Wordfence

- CISA KEV: No listing in collected sources

- EPSS: 0.77% as of 2026-11-02; percentile 55.69%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-434

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/36dcde20-0af2-4b8b-8637-9a070dffa8a1?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/DataStorage/Manager.php#L2373 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/XMLRPC/Controller.php#L289 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/DataStorage/Manager.php#L1226 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/DynamicThumbnails/Controller.php#L33 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/XMLRPC/Controller.php#L69 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/DataStorage/Manager.php#L2951 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset/3699076/nextgen-gallery/trunk/src/DataStorage/Manager.php (CNA: Wordfence)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-76010; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-76010; retrieved 2026-11-02; source updated Not reported

Revision: 3a75eee1ec88a6996387cc646f434de503274dc47b81db82c846a107d044660e

Canonical: https://y2.dev/cve/CVE-2026-76010

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.