CVE-2005-4162: Cross-site scripting (XSS) vulnerability in cal_make.pl in ACME PerlCal 2.99.20 allows remote attackers to inj

Routine

MEDIUM 4.3DOWNGRADE

CVE-2005-4162 is a medium-severity flaw (CVSS 4.3) affecting perlcal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in cal_make.pl in ACME PerlCal 2.99.20 allows remote attackers to inject arbitrary web script or HTML via the p0 parameter.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Published	2005-12-11
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: acme labs

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

Am I affected?

Timeline

2005-12-11 11:03 UTCPublished CVE record published
2026-06-16 22:18 UTCUpdated Record last modified

acme labs perlcal DOWNGRADE

Affected: 2.99 · 2.99.20 · 2.99.30

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.99

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.99 (Debian / Ubuntu)

apt-cache madison perlcal sudo apt install perlcal=<VERSION_BEFORE_2.99> sudo apt-mark hold perlcal

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

dnf --showduplicates list perlcal sudo dnf downgrade perlcal-<VERSION_BEFORE_2.99> sudo dnf versionlock add perlcal

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-2005-4162?

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

Is CVE-2005-4162 being exploited?

CVE-2005-4162 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-2005-4162 affect?

CVE-2005-4162 affects perlcal. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in cal_make.pl in ACME PerlCal 2.99.20 allows remote attackers to inject arbitrary web script or HTML via the p0 parameter.

How urgent is CVE-2005-4162?

Priority 39/100. Public exploit reference

Related CVEs

CVE-2001-0463 MEDIUM 5.0 DOWNGRADE Directory traversal vulnerability in cal_make.pl in PerlCal allows remote attackers to read arbitrary files vi

References

← Back to latest CVEs