CyberRota Analysis
AI-GeneratedWallos versions prior to 5.0.0 are vulnerable to an injection flaw that allows authenticated users to manipulate iCalendar exports by embedding CRLF sequences in subscription names or notes. This can lead to the insertion of malicious calendar events, potentially deceiving users with spoofed organizers and misleading information. Organizations using Wallos should prioritize upgrading to version 5.0.0 to mitigate the risk of exploitation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 5.0.0, Wallos allows authenticated users to inject arbitrary iCalendar properties and events into their exported .ics feed by embedding raw CRLF sequences in subscription names or notes. Because the input validation layer only encodes HTML metacharacters but never strips newlines, and the export layer decodes those entities back before writing iCal output, an attacker with any valid account can craft a subscription whose name breaks out of the current VEVENT block and inserts fully attacker-controlled calendar events — including spoofed organizers, arbitrary email addresses in ATTENDEE properties, and misleading event content — into any calendar application subscribed to that feed. This issue has been patched in version 5.0.0.