How severe is CVE-2020-3282?

CVE-2020-3282 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-3282 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3282?

CVE-2020-3282 primarily affects Cisco Unified Communications Manager. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-3282?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-3282 published?

CVE-2020-3282 was published on 2020-07-02 and last updated on 2026-06-17.

CVE-2020-3282

CVE-2020-3282 is a medium-severity vulnerability in Cisco Unified Communications Manager with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Cisco Unified Communications Manager
Published: 2020-07-02
Last modified: 2026-06-17

Description

A vulnerability in the web-based management interface of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, and Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability 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 affected interface or access sensitive browser-based information.

Frequently asked questions

What is CVE-2020-3282?: A vulnerability in the web-based management interface of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, and Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability 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 affected interface or access sensitive browser-based information.
How severe is CVE-2020-3282?: CVE-2020-3282 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-3282 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3282?: CVE-2020-3282 primarily affects Cisco Unified Communications Manager. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-3282?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-3282 published?: CVE-2020-3282 was published on 2020-07-02 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-cuc-imp-xss-OWuSYAp

Affected products (12)

cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:session_management:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\):*:*:*:session_management:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:session_management:*:*:*
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:12.0\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:12.0\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:12.5\(1\):*:*:*:*:*:*:*

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