Vulnerability report

Active exploitation observed Confirmed confidence In CISA KEV

CVE-2025-58360

geoserver

Geoserver · >= 2.26.0, < 2.26.2

Watch CVE-2025-58360 Browse KEV feed
Severity
CVSS 8.2 · High
Confidence
Confirmed
Exploit status
Observed in sensors
EPSS
60.5%
First observed
12 Jun 2026
Last observed
05 Oct 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2025-58360 is an unauthenticated vulnerability affecting geoserver. GeoServer is an open source server that allows users to share and edit geospatial data. From version 2.26.0 to before 2.26.2 and before 2.25.6,...

Is it exploited?

Yes. Previdian sensors observed exploitation attempts with confirmed confidence. Listed in CISA KEV. Also confirmed by third-party sources.

Who is affected?

geoserver >= 2.26.0, < 2.26.2.

What should we do?

Patch immediately, validate internet-facing exposure, and monitor for matching requests.

Overview

GeoServer is an open source server that allows users to share and edit geospatial data

GeoServer is an open source server that allows users to share and edit geospatial data. From version 2.26.0 to before 2.26.2 and before 2.25.6, an XML External Entity (XXE) vulnerability was identified. The application accepts XML input through a specific endpoint /geoserver/wms operation GetMap.

However, this input is not sufficiently sanitized or restricted, allowing an attacker to define external entities within the XML request. This issue has been patched in GeoServer 2.25.6, GeoServer 2.26.3, and GeoServer 2.27.0.

geoserver Affected
geoserver
>= 2.26.0, < 2.26.2 Before 2.25.6
Published
25 Nov 2025
Exploitation Reported
01 Jun 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

cisa nuclei_scanner

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CVE

Recorded 01 Jun 2026

A trusted third party reported exploitation.

Active exploitation observed

Previdian sensor

First observed 12 Jun 2026

Previdian first observed exploitation attempts targeting this vulnerability in our honeypot sensors.

Proof of concept available

Nuclei Templates

Recorded 12 Jun 2026

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
The Shadowserver First 2026-05-30 00:00 UTC
CVE 2026-06-01 10:46 UTC
CISA 2026-06-02 14:04 UTC
Previdian Sensors 2026-09-30 19:32 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

First-party evidence of exploitation activity

Previdian sensors recorded exploitation attempts targeting this vulnerability. The cards and chart show volume, unique attackers, and daily activity.

26

Attempts observed

12

Unique attacker IPs

8

Attacker countries

BG · CA · CH · ER · HK · NL · US · YE

11

Sensors observed

CVE-2025-58360 exploitation attempts over the last 87 days

Daily events observed by Previdian sensors

Updated 12 Oct 2026

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18 Jul 5 Aug 23 Aug 10 Sep 12 Oct

First observed 12 Jun 2026 · Last observed 05 Oct 2026

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Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
5
10
2

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

Previdian virtual patch guidance is available for this CVE.

AWS WAF Cloudflare ModSecurity

Attacker IP Indicators

Attacker IP indicators observed · available in Pro and Enterprise.

Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.

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Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-58360.yaml 01 Jun 2026

Virtual Patch Detail

Compensating WAF rules for this CVE.

Available

Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to Previdian Enterprise users.

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Risk and context

Severity, weaknesses, and research context

CVSS v3.1

8.2 High

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

EPSS

60.5%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Restriction of XML External Entity Reference CWE-611

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

GeoServer - XML External Entity Injection

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

  1. 11:35 UTC

    Virtual patch available

    Compensating WAF rule available to block exploitation

  2. 14:21 UTC

    Public PoC available

    Public proof-of-concept code published

  3. 00:34 UTC

    Indicators of compromise added (20)

    Indicators of compromise recorded

  4. 00:34 UTC

    Observed by Previdian sensors

    Evidence-backed exploitation signal

  5. 14:04 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  6. 15:34 UTC

    Nuclei template available

    Scanner coverage available

  7. 10:46 UTC

    KEV confirmed by CVE

    Exploitation attested by an external source

  8. 00:00 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  9. 20:17 UTC

    CVE published

    Vulnerability disclosed publicly

  10. 16:19 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.

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  • 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-2025-58360

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2025-58360",
  "confidence": "Confirmed",
  "cvss_score": 8.2,
  "cvss_estimated": false,
  "epss_score": 0.60522,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 26, "sensors": 11 }
}