Unauthenticated date-field disclosure via unchecked iCal feeds
Published May 19, 2026 · Updated May 19, 2026
Missing authorization in Drupal Date iCal before 4.0.15 allows remote attackers to disclose entity date fields through iCal feeds. The feed-generation routes omit entity- and field-access checks and process unsanitized user input when exporting calendar data. Anonymous access reaches the routes with no permission or configuration required; the documented consequence is disclosure, not modification or interruption.
Summary
What happened
Missing authorization in Drupal Date iCal before 4.0.15 allows remote attackers to disclose entity date fields through iCal feeds. The feed-generation routes omit entity- and field-access checks and process unsanitized user input when exporting calendar data. Anonymous access reaches the routes with no permission or configuration required; the documented consequence is disclosure, not modification or interruption.
The record
- CVE
- CVE-2026-8495
- Published
- May 19, 2026
- Updated
- May 19, 2026
- Vendor
- Avatar Uploader Project
- Product
- Date iCal
- Classifications
- CWE-862, CAPEC-87, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 19, 2026CVE publishedPublication date reported by the CVE source.
- May 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.0.0 <4.0.15
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo