How severe is CVE-2019-12427?

CVE-2019-12427 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-2019-12427 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12427?

CVE-2019-12427 affects Zimbra Collaboration Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12427?

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

When was CVE-2019-12427 published?

CVE-2019-12427 was published on 2020-01-27 and last updated on 2026-06-17.

CVE-2019-12427

CVE-2019-12427 is a medium-severity vulnerability in Zimbra Collaboration Server 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)
CVSS v2: 3.5
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Zimbra Collaboration Server
Published: 2020-01-27
Last modified: 2026-06-17

Description

Zimbra Collaboration before 8.8.15 Patch 1 is vulnerable to a non-persistent XSS via the Admin Console.

Frequently asked questions

What is CVE-2019-12427?: Zimbra Collaboration before 8.8.15 Patch 1 is vulnerable to a non-persistent XSS via the Admin Console.
How severe is CVE-2019-12427?: CVE-2019-12427 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-2019-12427 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12427?: CVE-2019-12427 affects Zimbra Collaboration Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12427?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-12427 published?: CVE-2019-12427 was published on 2020-01-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:zimbra:collaboration_server:*:*:*:*:*:*:*:*

More vulnerabilities in Zimbra Collaboration Server

CVE-2013-7217 — Critical (CVSS 10.0): Unspecified vulnerability in Zimbra Collaboration Server 7.2.5 and earlier, and 8.0.x through 8.0.5, has "critical"…
CVE-2019-8947 — Medium (CVSS 6.1): Zimbra Collaboration 8.7.x - 8.8.11P2 contains non-persistent XSS.
CVE-2019-8946 — Medium (CVSS 6.1): Zimbra Collaboration 8.7.x - 8.8.11P2 contains persistent XSS.
CVE-2019-8945 — Medium (CVSS 6.1): Zimbra Collaboration 8.7.x - 8.8.11P2 contains persistent XSS.
CVE-2019-15313 — Medium (CVSS 6.1): In Zimbra Collaboration before 8.8.15 Patch 1, there is a non-persistent XSS vulnerability.

All CVEs affecting Zimbra Collaboration Server →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →