CVE-2006-0648: Multiple directory traversal vulnerabilities in PHP iCalendar 2.0.1, 2.1, and 2.2 allow remote attackers to in

This month

MEDIUM 5.0DOWNGRADE

CVE-2006-0648 is a medium-severity flaw (CVSS 5.0) affecting php icalendar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple directory traversal vulnerabilities in PHP iCalendar 2.0.1, 2.1, and 2.2 allow remote attackers to include arbitrary files via the (1) getdate and possibly other parameters used in the replace_files function in search.php and (2) $file variable as used in the parse function in functions/template.php.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Published	2006-02-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: php icalendar

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-02-13 11:06 UTCPublished CVE record published
2026-06-16 22:21 UTCUpdated Record last modified

php icalendar php icalendar DOWNGRADE

Affected: 2.0 · 2.0.1 · 2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy php-icalendar || rpm -q php-icalendar || php-icalendar --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison php-icalendar sudo apt install php-icalendar=<VERSION_BEFORE_2.0> sudo apt-mark hold php-icalendar

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list php-icalendar sudo dnf downgrade php-icalendar-<VERSION_BEFORE_2.0> sudo dnf versionlock add php-icalendar

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2006-0648?

php icalendar: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-0648 being exploited?

CVE-2006-0648 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2006-0648 affect?

CVE-2006-0648 affects php icalendar. Severity is medium (CVSS 5.0). Multiple directory traversal vulnerabilities in PHP iCalendar 2.0.1, 2.1, and 2.2 allow remote attackers to include arbitrary files via the (1) getdate and possibly other parameters used in the replace_files function in search.php and (2) $

How urgent is CVE-2006-0648?

Priority 43/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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