Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2023-2806

Weaver e-cology API RequestInfoByXml xml external entity reference

Weaver / e-cology · 9.0

Watch CVE-2023-2806 Browse KEV feed
Severity
CVSS 5.5 · Medium
Confidence
High
Exploit status
Exploited in the wild
EPSS
1.0%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2023-2806 is Weaver e-cology API RequestInfoByXml xml external entity reference. A vulnerability classified as problematic was found in Weaver e-cology up to 9.0. Affected by this vulnerability is the function...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is high. Also confirmed by third-party sources.

Who is affected?

Weaver / e-cology 9.0.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

A vulnerability classified as problematic was found in Weaver e-cology up to 9.0

A vulnerability classified as problematic was found in Weaver e-cology up to 9.0. Affected by this vulnerability is the function RequestInfoByXml of the component API. The manipulation leads to xml external entity reference. The associated identifier of this vulnerability is VDB-229411.

NOTE: The vendor was contacted early about this disclosure but did not respond in any way. In Weaver e-cology bis 9.0 wurde eine problematische Schwachstelle entdeckt. Das betrifft die Funktion RequestInfoByXml der Komponente API. Mittels Manipulieren mit unbekannten Daten kann eine xml external entity reference-Schwachstelle ausgenutzt werden.

Weaver Affected
e-cology
9.0
Published
19 May 2023
Exploitation Reported
19 May 2023
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None

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

The Shadowserver

Recorded 19 May 2023

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

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Source Added
The Shadowserver First 2023-05-19 08:31 UTC

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
0
0
0

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

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.

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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 v3.1

5.5 Medium

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

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

EPSS

1.0%

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

All CVSS Scores

CVSS v3.1 5.5 Medium

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

CVSS v3.0 5.5 Medium

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v2.0 5.2 Medium

AV:A/AC:L/Au:S/C:P/I:P/A:P

Timeline

From disclosure to observed exploitation

  1. 08:31 UTC

    CVE published

    Vulnerability disclosed publicly

  2. 08:31 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  3. 08:22 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

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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
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GET /api/v2/pro/kevs/CVE-2023-2806

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2023-2806",
  "confidence": "High",
  "cvss_score": 5.5,
  "cvss_estimated": false,
  "epss_score": 0.00984,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}