# CVE-2026-117607: Xerte Online Toolkits through 3.15.5 RCE via Language Pack Import

Status: published. Published: 2026-10-28. Updated: 2026-11-02.

Xerte Online Toolkits through 3.15.5 contains a remote code execution vulnerability that allows authenticated users with system permission to run PHP by importing a crafted language pack. Attackers can upload a ZIP via import_language.php containing a .inc file, then request it through the language parameter to execute code on the server.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- thexerteproject / xerteonlinetoolkits: ≥ 0; ≤ 3.15.5 (affected, custom). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.6 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 7.2 (high); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.68% as of 2026-11-02; percentile 52.58%

- SSVC: exploitation poc; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-434

## Exploit evidence

- exploit: https://github.com/thexerteproject/xerteonlinetoolkits/issues/1557 (ADP: CISA-ADP)

## References

- https://github.com/thexerteproject/xerteonlinetoolkits/issues/1557 (CNA: VulnCheck; issue-tracking)

- https://github.com/thexerteproject/xerteonlinetoolkits/blob/c381d8cbdff6b59bb52bf158cd30cf2c425cb24b/functions.php#L419 (CNA: VulnCheck; technical-description)

- https://github.com/thexerteproject/xerteonlinetoolkits/blob/c381d8cbdff6b59bb52bf158cd30cf2c425cb24b/website_code/php/language/import_language.php#L211 (CNA: VulnCheck; technical-description)

- https://github.com/thexerteproject/xerteonlinetoolkits (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/xerte-online-toolkits-through-3.15.5-rce-via-language-pack-import (CNA: VulnCheck; third-party-advisory)

- https://github.com/thexerteproject/xerteonlinetoolkits/issues/1557 (ADP: CISA-ADP; exploit)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-117607; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-117607; retrieved 2026-11-02; source updated Not reported

Revision: fad9c80b6f5cc18ffe9b519dda8542527ce257017af1416326c3e1c810184065

Canonical: https://y2.dev/cve/CVE-2026-117607

## 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.