CVE-2005-1864: PHP remote file inclusion vulnerability in cal_admintop.php in Calendarix Advanced 1.5 allows remote attackers

Routine

MEDIUM 5.0DOWNGRADE

CVE-2005-1864 is a medium-severity flaw (CVSS 5.0) affecting calendarix advanced. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in cal_admintop.php in Calendarix Advanced 1.5 allows remote attackers to execute arbitrary PHP code via the calpath parameter.

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	1.1% (top 35%)
CISA exploited list	No
Published	2005-06-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: vincent hor

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

Am I affected?

Timeline

2005-06-09 04:00 UTCPublished CVE record published
2026-06-16 22:13 UTCUpdated Record last modified

vincent hor calendarix advanced DOWNGRADE

Affected: 1.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5

1. Check installed version

apt-cache policy calendarix-advanced || rpm -q calendarix-advanced || calendarix-advanced --version

2. No fixed release: DOWNGRADE to a release before 1.5 (Debian / Ubuntu)

apt-cache madison calendarix-advanced sudo apt install calendarix-advanced=<VERSION_BEFORE_1.5> sudo apt-mark hold calendarix-advanced

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

dnf --showduplicates list calendarix-advanced sudo dnf downgrade calendarix-advanced-<VERSION_BEFORE_1.5> sudo dnf versionlock add calendarix-advanced

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-2005-1864?

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

Is CVE-2005-1864 being exploited?

CVE-2005-1864 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-2005-1864 affect?

CVE-2005-1864 affects calendarix advanced. Severity is medium (CVSS 5.0). PHP remote file inclusion vulnerability in cal_admintop.php in Calendarix Advanced 1.5 allows remote attackers to execute arbitrary PHP code via the calpath parameter.

How urgent is CVE-2005-1864?

Priority 39/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-1835 LOW 2.6 DOWNGRADE DOWNGRADE Cross-site scripting (XSS) vulnerability in yearcal.php in Calendarix allows remote attackers to inject arbitr
CVE-2005-1866 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in calendar.php in Calendarix Advanced 1.5 allows remote attackers to
CVE-2005-1865 HIGH 7.5 DOWNGRADE Multiple SQL injection vulnerabilities in Calendarix Advanced 1.5 allow remote attackers to execute arbitrary

References

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