TI-2020-03123 Aliases CVE-2020-3582 GHSA-9cp4-j6jm-4g5r

Cross-site scripting in Cisco Adaptive Security Appliance Software

LOW 30CWE-79Published 2020-10-21 · Updated 2024-11-13

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the web services interface of an affected device. The vulnerabilities are due to insufficient validation of user-supplied input by the web services interface of an affected device. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive, browser-based information. Note: These vulnerabilities affect only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01159 67th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco Adaptive Security Appliance (ASA) Software	all versions	—	No fix listed	CNA

Cisco Adaptive Security Appliance (ASA) Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:secure_firewall_threat_defense::::::::	6.4.0 to before 6.4.0.10	Vulnerable	Cisco
cpe:2.3:o:cisco:firepower_threat_defense::::::::	before 6.3.0.6; 6.5.0 to before 6.5.0.5; 6.6.0 to before 6.6.1	Vulnerable	Cisco
cpe:2.3:o:cisco:adaptive_security_appliance_software::::::::	before 9.8.4.26; 9.9 to before 9.9.2.80; 9.10 to before 9.10.1.44; 9.12 to before 9.12.4.4; 9.13 to before 9.13.1.13; 9.14 to before 9.14.1.30	Vulnerable	Cisco

cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* Versions 6.4.0 to before 6.4.0.10 Vulnerable ·Cisco
cpe:2.3:o:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* Versions before 6.3.0.6; 6.5.0 to before 6.5.0.5; 6.6.0 to before 6.6.1 Vulnerable ·Cisco
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* Versions before 9.8.4.26; 9.9 to before 9.9.2.80; 9.10 to before 9.10.1.44; 9.12 to before 9.12.4.4; 9.13 to before 9.13.1.13; 9.14 to before 9.14.1.30 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2020-10-21
Cisco Adaptive Security Appliance (ASA) Software — 20201021 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities
4 records Highest priority Priority HIGH 1 HIGH, 3 LOW
Other records, highest priority first
- TI-2020-03121 Cross-site scripting in Cisco Adaptive Security Appliance SoftwarePriority HIGH 84
- TI-2020-03122 Cross-site scripting in Cisco Adaptive Security Appliance SoftwarePriority LOW 30
- TI-2020-03124 Cross-site scripting in Cisco Adaptive Security Appliance SoftwarePriority LOW 29
Show all 4 records → Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2020-3582
2026-10-03 Alias added: GHSA-9cp4-j6jm-4g5r

References

Patch 1

20201021 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities

TI-2025-14628 Buffer overflow in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.9
TI-2016-05454 Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on… KEVCVSS 3.1HIGH 8.8
TI-2023-06973 Authentication bypass in Cisco Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.1
TI-2026-82192 Denial of service in Cisco Secure Firewall ASA and FTD SSL VPN KEVCVSS 3.1HIGH 8.6
TI-2026-16533 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense… KEVCVSS 3.1HIGH 8.6
TI-2025-14657 Missing authorization in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1HIGH 8.6

See all 354 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences