Security readout for executives and security teams
CVE-2004-1509 is an information disclosure issue in WebCalendar. A malformed encoded_login value sent to validate.php can cause an error message that exposes the server’s full filesystem path. That detail can help an attacker map the application environment, but the supplied sources do not show direct code execution or active exploitation. Exposure is most likely where legacy WebCalendar instances are still deployed and validate.php is reachable over the network. The affected-version data in the bundle is incomplete, so teams should identify WebCalendar installations rather than rely on version matching alone. Treat this as a low-priority but practical cleanup item unless WebCalendar is internet-facing or unsupported. The business risk is environmental disclosure that may support later attacks, not confirmed direct compromise from this CVE alone. Mitigation focus: Inventory any active or archived WebCalendar deployments.; Check WebCalendar vendor or maintainer guidance for affected versions and fixes.; Suppress detailed PHP error output from public responses..
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-2004-1509 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
- webcalendar-encodedlogin-path-disclosure(18029)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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