Security readout for executives and security teams
Plain-English summary
ZKTeco ZKBioSecurity 3.0.1.0_R_230 has multiple reflected cross-site scripting flaws. An attacker could trick a user into opening a crafted link, causing script to run in that user’s browser within the ZKBioSecurity application. Business risk is mainly account misuse, data exposure, or workflow tampering if privileged users are targeted.
Executive priority
Address in normal vulnerability management cadence, faster if ZKBioSecurity is internet-facing or used by privileged administrators. This is not proven actively exploited in the provided sources, but public details raise phishing-driven risk.
Technical view
CVE-2016-20027 is CWE-79 reflected XSS across multiple ZKBioSecurity 3.0 scripts using unsanitized parameters. CVSS 3.1 is 6.1: network exploitable, low complexity, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact.
Likely exposure
Exposure is limited to organizations running ZKTeco ZKBioSecurity version 3.0.1.0_R_230, especially if the web interface is reachable by untrusted users or over the internet.
Exploitation context
Public advisories and a Packet Storm listing exist, indicating public technical detail. The source bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation requires convincing a user to visit a malicious URL.
Researcher notes
Treat this as reflected XSS requiring user interaction. Avoid assuming broader product versions are affected beyond 3.0.1.0_R_230. Public exploit references exist, but the provided material does not establish active exploitation or a specific vendor patch.
Mitigation direction
- Check ZKTeco guidance for fixed versions or vendor-supported mitigations.
- Upgrade or replace affected ZKBioSecurity 3.0.1.0_R_230 where vendor guidance supports it.
- Restrict ZKBioSecurity web access to trusted networks or VPN users.
- Train administrators not to open unsolicited ZKBioSecurity links.
- Use browser, email, and web filtering controls to reduce malicious-link delivery.
Validation and detection
- Inventory ZKBioSecurity deployments and confirm exact version numbers.
- Identify whether the web interface is internet-accessible or broadly reachable internally.
- Review logs for unusual requests to ZKBioSecurity pages with suspicious parameter content.
- Use approved vulnerability scanning to check for CVE-2016-20027 exposure.
- Confirm remediation against vendor documentation or a safe retest plan.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2016-20027 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- Zero Science Lab DisclosureCVE reference · third-party-advisory
- CXSecurityCVE reference · third-party-advisory
- IBM X-Force ExchangeCVE reference · vdb-entry
- Packet Storm SecurityCVE reference · exploit
- VulnCheck Advisory: ZKTeco ZKBioSecurity 3.0 Multiple Reflected XSS VulnerabilitiesCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.