# CVE-2015-20130: Netsweeper < 4.0.11 / 4.1.5 Reflected XSS via view_server_log.php

Status: published. Published: 2026-10-30. Updated: 2026-11-04.

Netsweeper before 4.0.11 and 4.1.0 before 4.1.5 contains a reflected cross-site scripting vulnerability in webadmin/reporter/view_server_log.php that allows remote attackers to execute arbitrary JavaScript by injecting malicious code through the log request parameter, which is reflected into the HTML response without output encoding. Attackers can craft a malicious URL and induce a user to request it, resulting in arbitrary JavaScript execution within the victim's browser session against the Netsweeper web administration interface. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-19.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Netsweeper / Netsweeper: ≥ 0; < 4.0.11 (affected, semver); ≥ 4.1.0; < 4.1.5 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 5.1 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 6.1 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N; source: CNA: VulnCheck

- CVSS 4.0: 5.1 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 6.1 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.29% as of 2026-11-04; percentile 21.70%

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

- Weaknesses: CWE-79

## Exploit evidence

- exploit: http://packetstormsecurity.com/files/133034/Netsweeper-Bypass-XSS-Redirection-SQL-Injection-Execution.html (CNA: VulnCheck)
- exploit: https://www.exploit-db.com/exploits/37930 (CNA: VulnCheck)

## References

- http://packetstormsecurity.com/files/133034/Netsweeper-Bypass-XSS-Redirection-SQL-Injection-Execution.html (CNA: VulnCheck; exploit)

- https://www.exploit-db.com/exploits/37930 (CNA: VulnCheck; exploit)

- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/netsweeper/netsweeper-rxss.yaml (CNA: VulnCheck; technical-description)

- https://www.netsweeper.com/ (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/netsweeper-reflected-xss-via-view-server-log-php (CNA: VulnCheck; third-party-advisory)

- http://packetstormsecurity.com/files/133034/Netsweeper-Bypass-XSS-Redirection-SQL-Injection-Execution.html (disclosure@vulncheck.com)

- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/netsweeper/netsweeper-rxss.yaml (disclosure@vulncheck.com)

- https://www.exploit-db.com/exploits/37930 (disclosure@vulncheck.com)

- https://www.netsweeper.com/ (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/netsweeper-reflected-xss-via-view-server-log-php (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2015-20130; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-20130; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2015-20130; retrieved 2026-11-04; source updated Not reported

Revision: 5296e9b1770150aedb93d227283e58b6be683461d3c2851b05f1e6773c5f5009

Canonical: https://y2.dev/cve/CVE-2015-20130

## 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.

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