CVE-2007-1110: Directory traversal vulnerability in data/showcode.php in ActiveCalendar 1.2.0 allows remote attackers to read

This month

MEDIUM 5.0DOWNGRADE

CVE-2007-1110 is a medium-severity flaw (CVSS 5.0) affecting activecalendar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in data/showcode.php in ActiveCalendar 1.2.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the page 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	3.6% (top 11%)
CISA exploited list	No
Published	2007-02-26
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: activecalendar

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

Am I affected?

Timeline

2007-02-26 17:28 UTCPublished CVE record published
2026-06-16 22:36 UTCUpdated Record last modified

activecalendar activecalendar DOWNGRADE

Affected: 1.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.0

1. Check installed version

apt-cache policy activecalendar || rpm -q activecalendar || activecalendar --version

2. No fixed release: DOWNGRADE to a release before 1.2.0 (Debian / Ubuntu)

apt-cache madison activecalendar sudo apt install activecalendar=<VERSION_BEFORE_1.2.0> sudo apt-mark hold activecalendar

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

dnf --showduplicates list activecalendar sudo dnf downgrade activecalendar-<VERSION_BEFORE_1.2.0> sudo dnf versionlock add activecalendar

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Active Calendar 1.2 - 'showcode.php' Local File Inclusion

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-2007-1110?

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

Is CVE-2007-1110 being exploited?

CVE-2007-1110 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-2007-1110 affect?

CVE-2007-1110 affects activecalendar. Severity is medium (CVSS 5.0). Directory traversal vulnerability in data/showcode.php in ActiveCalendar 1.2.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the page parameter.

How urgent is CVE-2007-1110?

Priority 45/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2007-1111 MEDIUM 6.8 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in ActiveCalendar 1.2.0 allow remote attackers to inject a

References

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