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Fencer Vulns
high 7.5

CVE-2006-1291 json

publish.ical.php in Jim Hu and Chad Little PHP iCalendar 2.21 and earlier does not require authentication for write access to the calendars…

published 2006-03-19 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-1295

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.1%
EPSS 7.1% chance of exploitation in 30 days, percentile 94%
public exploits
1
Exploit-DB

Summary

publish.ical.php in Jim Hu and Chad Little PHP iCalendar 2.21 and earlier does not require authentication for write access to the calendars directory, which allows remote attackers to upload and execute arbitrary PHP scripts via a WebDAV PUT request with a filename containing a .php extension and a trailing null character.

Timeline

  1. First public exploit (EDB-1586)
  2. Published

Exploit prediction

7.10% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-1586 PHP iCalendar 2.21 - 'publish.ical.php' Remote Code Execution webapps, 2006-03-15
  • downloads.securityfocus.com http://downloads.securityfocus.com/vulnerabilities/exploits/php-iCalendar-221.upload.php referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/17129 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.