# CVE-2026-118191: Photo Gallery, Sliders, Proofing and Themes <= 4.5.5 - Authenticated (Custom+) Arbitrary File Deletion via 'task_list' and 'app_config' Parameters

Status: published. Published: 2026-11-13. Updated: 2026-11-13.

The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the handle_job function in all versions up to, and including, 4.5.5 This makes it possible for authenticated attackers, with custom-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). The 'NextGEN Manage gallery' capability required to reach the vulnerable endpoint is granted to Administrators by default but can be delegated to lower-privileged roles via the plugin's Roles screen.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- smub / Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery: ≥ 0; ≤ 4.5.5 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H; source: CNA: Wordfence

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H; source: NVD: security@wordfence.com

- CISA KEV: No listing in collected sources

- EPSS: 1.06% as of 2026-11-13; percentile 65.02%

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

- Weaknesses: CWE-22

## Exploit evidence

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/b4e01402-f866-43b9-9fef-7e9b156a9e0d?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.3/src/Lightroom/Controller.php#L2943 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.3/src/Lightroom/Controller.php#L2764 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.3/src/Lightroom/Controller.php#L164 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.3/src/Lightroom/Controller.php#L2395 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset/3793263/nextgen-gallery/trunk/src/Lightroom/Controller.php?old=3773860&old_path=nextgen-gallery%2Ftrunk%2Fsrc%2FLightroom%2FController.php (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset/3793263/nextgen-gallery/trunk/src/Lightroom/Controller.php (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.3/src/Lightroom/Controller.php#L164 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.3/src/Lightroom/Controller.php#L2395 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.3/src/Lightroom/Controller.php#L2764 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.3/src/Lightroom/Controller.php#L2943 (security@wordfence.com)

- https://plugins.trac.wordpress.org/changeset/3793263/nextgen-gallery/trunk/src/Lightroom/Controller.php (security@wordfence.com)

- https://plugins.trac.wordpress.org/changeset/3793263/nextgen-gallery/trunk/src/Lightroom/Controller.php?old=3773860&old_path=nextgen-gallery%2Ftrunk%2Fsrc%2FLightroom%2FController.php (security@wordfence.com)

- https://www.wordfence.com/threat-intel/vulnerabilities/id/b4e01402-f866-43b9-9fef-7e9b156a9e0d?source=cve (security@wordfence.com)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-118191; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-118191; retrieved 2026-11-13; source updated 2026-11-13

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-118191; retrieved 2026-11-13; source updated Not reported

Revision: c70c9a966b5dd50c13b2a4e2f76da204201075fe52cb6298184f70b421cfbde5

Canonical: https://y2.dev/cve/CVE-2026-118191

## 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, filters, sort, 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.