How severe is CVE-2024-20305?

CVE-2024-20305 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-20305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-20305?

CVE-2024-20305 affects Cisco Unity Connection. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-20305?

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

Does CVE-2024-20305 have an EU (EUVD) identifier?

Yes. CVE-2024-20305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18020.

When was CVE-2024-20305 published?

CVE-2024-20305 was published on 2024-01-26 and last updated on 2026-06-17.

CVE-2024-20305

CVE-2024-20305 is a medium-severity vulnerability in Cisco Unity Connection with a CVSS 3.x base score of 4.8. 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 4.8)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-18020
Weakness: CWE-79
Affected product: Cisco Unity Connection
Published: 2024-01-26
Last modified: 2026-06-17

Description

A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. 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-2024-20305?: A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. 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-2024-20305?: CVE-2024-20305 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-20305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20305?: CVE-2024-20305 affects Cisco Unity Connection. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-20305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-20305 have an EU (EUVD) identifier?: Yes. CVE-2024-20305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18020.
When was CVE-2024-20305 published?: CVE-2024-20305 was published on 2024-01-26 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cuc-xss-9TFuu5MS

Affected products (1)

cpe:2.3:a:cisco:unity_connection:*:*:*:*:*:*:*:*

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