Security readout for executives and security teams
This is an older cross-site scripting issue in Horde Kronolith calendar. A remote attacker could place script or HTML in calendar event location fields that later render in portal calendar blocks. Business impact depends on whether legacy Horde webmail or Kronolith remains exposed to users. Exposure is most likely in legacy Horde Groupware Webmail or Kronolith installations, especially internet-facing webmail portals with calendar blocks enabled. The source bundle does not identify affected CPEs or modern supported product lines. Treat this as a legacy exposure cleanup item unless Horde webmail is still internet-facing or widely used internally. Prioritize confirmation and patching because XSS in webmail can affect user sessions and trusted communications. Mitigation focus: Upgrade Kronolith H4 to 3.0.18 or later where applicable.; Upgrade Horde Groupware Webmail Edition to 4.0.9 or vendor-fixed packages.; Check distribution advisories for backported fixes before judging by version alone..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2012-5567 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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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/d3dda2d47fad7eb128a0091e732cded0c2601009/kronolith/docs/CHANGESCVE reference · x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=879684CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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