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Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2022-50997

E-cology 9.0 SQL Injection

Weaver Network / E-cology 9.0

View live feed Monitor via API Watch CVE-2022-50997
Severity
CVSS 8.7 · High
Confidence
High
Exploit status
Exploited in the wild
EPSS
0.5%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2022-50997 is an unauthenticated vulnerability affecting Weaver Network E-cology 9.0, E-cology 8.0. Weaver (Fanwei) E-cology 8.0 and 9.0 contains a SQL injection vulnerability in the HrmCareerApplyPerView.jsp...

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 Network / E-cology 9.0.

What should we do?

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

Overview

E-cology 9.0 SQL Injection

Weaver (Fanwei) E-cology 8.0 and 9.0 contains a SQL injection vulnerability in the HrmCareerApplyPerView.jsp endpoint that allows unauthenticated remote attackers to extract arbitrary data from the backend database by manipulating the id GET parameter. Attackers can send a single crafted GET request with UNION-based injection payloads through the unsanitized id parameter to retrieve arbitrary data from the Microsoft SQL Server backend.

This vulnerability is potentially remediated in software version 10.53 or 10.54. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18 (UTC).

View vendor advisory (opens in new tab)
Published
11 Aug 2026
Exploitation Reported
14 Aug 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

microsoft

CVE References

  • CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2022-50997
  • Software Download Page weaver.com.cn · Patch https://www.weaver.com.cn/cs/securityDownload.html#
  • CN-SEC Disclosure cn-sec.com · Third-Party Advisory https://cn-sec.com/archives/1211578.html
  • Third-Party Advisory — vulncheck.com vulncheck.com · Third-Party Advisory https://www.vulncheck.com/advisories/weaver-e-cology-sql-injection-vi...
  • PeiQi Disclosure peiqi.wgpsec.org · Exploit https://peiqi.wgpsec.org/wiki/oa/%E6%B3%9B%E5%BE%AEOA/%E6%B3%9B%E5%BE...
  • E-cology Changelog weaver.com.cn · Release Notes https://www.weaver.com.cn/cs/ecology_full_log_en.html

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 14 Aug 2026

Independent exploitation attestation added to the Previdian record.

Known exploited vulnerability sources

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

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Source Added
CVE First 2026-08-14 17:10 UTC
The Shadowserver 2026-08-28 00:00 UTC

Detection

Operational artifacts and observed signals

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

Observed signals

Request targets
0
User-Agents
0

Raw values available in Pro and 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.

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

8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS

0.5%

Weaknesses

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') CWE-89

All CVSS Scores

CVSS v4.0 8.7 High

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS v3.1 7.5 High

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

Timeline

From disclosure to observed exploitation

  1. KEV confirmed by The Shadowserver

    Exploitation attested by an external source

  2. Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  3. Added to the Previdian watchlist

    Pro and Enterprise Watch users had 2 days of early warning before Previdian confirmed it as a KEV.

  4. CVE published

    Vulnerability disclosed publicly

  5. 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-2022-50997

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2022-50997",
  "confidence": "High",
  "cvss_score": 8.7,
  "cvss_estimated": false,
  "epss_score": 0.00462,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}