# CVE-2026-116514: itsourcecode Airline Reservation System book_flight.php cross site scripting

Status: published. Published: 2026-10-26. Updated: 2026-11-02.

A weakness has been identified in itsourcecode Airline Reservation System 1.0. This affects an unknown part of the file /book_flight.php. Executing a manipulation of the argument max can lead to cross site scripting. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- itsourcecode / Airline Reservation System: 1.0 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P; source: CNA: VulDB

- CVSS 3.1: 4.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R; source: CNA: VulDB

- CVSS 3.0: 4.3 (medium); CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R; source: CNA: VulDB

- CVSS 2.0: 5 (medium); AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: 0.35% as of 2026-11-02; percentile 28.31%

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

- Weaknesses: CWE-79, CWE-94

## Exploit evidence

- exploit: https://github.com/yuyanyan888/freecode/issues/1 (CNA: VulDB)

## References

- https://vuldb.com/vuln/426407 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/426407/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-116514 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1022649 (CNA: VulDB; third-party-advisory)

- https://github.com/yuyanyan888/freecode/issues/1 (CNA: VulDB; broken-link, exploit, issue-tracking)

- https://itsourcecode.com/ (CNA: VulDB; product)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-116514; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-116514; retrieved 2026-11-02; source updated Not reported

Revision: bccabe28aea34c1235abf0c14d43ab317d301b4a10c73553dce6a22fc5b436a9

Canonical: https://y2.dev/cve/CVE-2026-116514

## 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.