Cyber Resilience

CVE-2023-20228

XSS in Cisco Encs 5100 Firmware 3.2 – 3.2.15.1

Published
16 August 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 6.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0039 32th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2023-20228 is a medium-severity Basic XSS (CWE-80) vulnerability in Cisco Encs 5100 Firmware. Its CVSS base score is 6.1 (Medium).

Operationally, ranked at the 32th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of…

more

user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-20222Same vendor: Cisco
CVE-2023-20179Same vendor: Cisco
CVE-2023-20181Same vendor: Cisco
CVE-2023-20218Same vendor: Cisco
CVE-2023-20019Same vendor: Cisco
CVE-2023-20201Same vendor: Cisco
CVE-2023-20143Same vendor: Cisco
CVE-2023-20068Same vendor: Cisco
CVE-2023-20104Same vendor: Cisco
CVE-2023-20144Same vendor: Cisco

Affected Assets

cisco
encs 5100 firmware
3.2 — 3.2.15.1
cisco
encs 5400 firmware
3.2 — 3.2.15.1
cisco
ucs c220 m5 rack server firmware
4.2 — 4.3.2.230207
cisco
ucs e160s m3 firmware
≤ 3.2.15.1
cisco
ucs e180d m3 firmware
≤ 3.2.15.1
cisco
ucs-e1120d-m3 firmware
≤ 3.2.15.1

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.1.2
  • V1.3.2
  • V1.2.1
  • V1.3.1

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require output encoding and input validation that prevent basic XSS.

PR.PS-02 partial match
prevents

Patching and EOL replacement can remediate known XSS instances in libraries or frameworks (partial) but do nothing to enforce input neutralization in application code (none).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Security testing in development catches unneutralized script tags before release.

prevents

Knowledge exchange on emerging attack techniques and patches reduces the likelihood that cross-site scripting flaws remain unaddressed in deployed applications.

prevents

Operational indicators of compromise for web-application attacks can be incorporated into WAF or input-filtering rules, lowering the likelihood that unsanitized data reaches the browser.

prevents

Secure SDLC mandates input validation and output encoding that directly prevent basic XSS.

prevents

Application security requirements explicitly call for neutralization of script-related HTML tags.

prevents

Secure coding standards require proper escaping of <, >, & to block XSS.

References