CVE-2006-3319: Cross-site scripting (XSS) vulnerability in rss/index.php in PHP iCalendar 2.22 and earlier allows remote atta

Q: How do I fix CVE-2006-3319?

php icalendar: upgrade to newer than 2.22. Exact commands for each OS are on this page.

Q: Is CVE-2006-3319 being exploited?

CVE-2006-3319 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2006-3319 affect?

CVE-2006-3319 affects php icalendar. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in rss/index.php in PHP iCalendar 2.22 and earlier allows remote attackers to inject arbitrary web script or HTML via the cal parameter.

Q: How urgent is CVE-2006-3319?

Priority 38/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2006-3319 is a medium-severity flaw (CVSS 4.3) affecting php icalendar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in rss/index.php in PHP iCalendar 2.22 and earlier allows remote attackers to inject arbitrary web script or HTML via the cal parameter.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Published	2006-06-30
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

2006-06-30 01:05 UTCPublished CVE record published
2026-06-16 22:26 UTCUpdated Record last modified

php icalendar php icalendar UPGRADE

Affected: <= 2.22

Fixed in: newer than 2.22

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.22 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade php-icalendar

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade php-icalendar

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2006-3319?

php icalendar: upgrade to newer than 2.22. Exact commands for each OS are on this page.

Is CVE-2006-3319 being exploited?

CVE-2006-3319 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-2006-3319 affect?

CVE-2006-3319 affects php icalendar. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in rss/index.php in PHP iCalendar 2.22 and earlier allows remote attackers to inject arbitrary web script or HTML via the cal parameter.

How urgent is CVE-2006-3319?

Priority 38/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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