CVE-2012-5566: n/a vulnerability

CVE-2012-5566: Multiple cross-site scripting (XSS) vulnerabilities in Horde Kronolith Calendar Application H4 before 3.0.1...

Multiple cross-site scripting (XSS) vulnerabilities in Horde Kronolith Calendar Application H4 before 3.0.17, as used in Horde Groupware Webmail Edition before 4.0.8, allow remote attackers to inject arbitrary web script or HTML via the (1) tasks view or (2) search view.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 21:14 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw lets a remote attacker inject script or HTML into Horde Kronolith calendar task or search views. In a webmail or groupware context, successful XSS can expose user sessions or sensitive page data, but the bundle does not show active exploitation or a CVSS score. Exposure is likely limited to organizations still running legacy Horde Kronolith H4 or Horde Groupware Webmail Edition versions in the affected ranges. Internet-facing webmail raises business risk. Treat this as a legacy webmail hygiene issue with moderate urgency. It is not KEV-listed in the bundle, but exposed old groupware can create account and data risk. Mitigation focus: Inventory Horde Kronolith and Horde Groupware Webmail Edition versions.; Upgrade affected deployments using Horde or distribution vendor guidance.; Prioritize any internet-facing Horde webmail or calendar systems..

Prepared: Jun 14, 2026, 14:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 5, 2014, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/horde/horde/blob/master/kronolith/docs/CHANGESCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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