What it is
CVE-2015-20130 is an unauthenticated vulnerability affecting Netsweeper. 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...
Vulnerability report
Trusted Third Party Report
High Confidence
Not in CISA KEV
CVE-2015-20130
Netsweeper Cross-Site Scripting
Netsweeper · affected before 4.0.11
- Severity
- CVSS 5.1 · Medium
- Confidence
- High
- Exploit status
- Trusted Third Party Report
- EPSS
- 0.3%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Have exploitation attempts been observed?
Yes. Exploitation attempts have been reported for this vulnerability. Previdian lists it as a known exploited vulnerability. Also reported by third-party sources. Confidence is high.
Who is affected?
Netsweeper affected before 4.0.11.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Netsweeper Cross-Site Scripting
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.
Vendor
Product
Affected
Status
Netsweeper
Affected
Netsweeper
Before 4.0.11
Before 4.1.5
Affected
- Published
- 30 Oct 2026
- Exploitation Attempts Reported
- 30 Oct 2026
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- —
Tags
php
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2015-20130
- VulnCheck Advisory: Netsweeper < 4.0.11 / 4.1.5 Reflected XSS via view_server_log.php vulncheck.com · Third-Party Advisory https://www.vulncheck.com/advisories/netsweeper-reflected-xss-via-vie...
- Packet Storm 133034 packetstormsecurity.com · Exploit http://packetstormsecurity.com/files/133034/Netsweeper-Bypass-XSS-Red...
- EDB-37930 exploit-db.com · Exploit https://www.exploit-db.com/exploits/37930
- Nuclei Template github.com · Technical Description https://github.com/projectdiscovery/nuclei-templates/blob/main/http/v...
- Vendor Homepage netsweeper.com · Product https://www.netsweeper.com/
Exploitation evidence
Evidence of exploitation attempts
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploitation Attempts Observed in the Wild
CVE
A trusted third party reported exploitation attempts.
Proof of concept available
CVE
Public scanner or PoC coverage increases practical exploitability.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the Previdian Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-10-30 14:50 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Scanner coverage
No scanner integrations recorded yet.
Virtual patch status
No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Risk and context
Severity, weaknesses, and research context
CVSS v4.0
5.1
Medium
Potential damage if exploited. Separate from whether attackers are using it.
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
EPSS
0.3%
Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.
All CVSS Scores
CVSS v4.0
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
CVSS v3.1
6.1
Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
EDB-37930
cve · Created Unknown
Packet Storm 133034
cve · Created Unknown
Timeline
From disclosure to observed exploitation attempts
-
14:50 UTC
Public PoC available
Public proof-of-concept code published
-
14:50 UTC
Added to Previdian KEV Feed
High-confidence, third-party report of exploitation attempts
-
14:23 UTC
CVE published
Vulnerability disclosed publicly
-
21:17 UTC
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2015-20130
Sample API response{
"cve_id": "CVE-2015-20130",
"confidence": "High",
"cvss_score": 5.1,
"cvss_estimated": false,
"epss_score": 0.0029,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}