CVE-2025-25224: The LuxCal Web Calendar prior to 5.3.3M (MySQL version) and prior to 5.3.3L (SQLite version) contains a missin

Q: How do I fix CVE-2025-25224?

luxcal web calendar: upgrade to 5.3.3l, 5.3.3m. Exact commands for each OS are on this page.

Q: Is CVE-2025-25224 being exploited?

CVE-2025-25224 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-2025-25224 affect?

CVE-2025-25224 affects luxcal web calendar. Severity is high (CVSS 7.5). The LuxCal Web Calendar prior to 5.3.3M (MySQL version) and prior to 5.3.3L (SQLite version) contains a missing authentication vulnerability in dloader.php. If this vulnerability is exploited, arbitrary files on a server may be obtained.

Q: How urgent is CVE-2025-25224?

Priority 48/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

This month

HIGH 7.5REMOTEWATCHLISTUPGRADE

CVE-2025-25224 is a high-severity flaw (CVSS 7.5) affecting luxcal web calendar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The LuxCal Web Calendar prior to 5.3.3M (MySQL version) and prior to 5.3.3L (SQLite version) contains a missing authentication vulnerability in dloader.php. If this vulnerability is exploited, arbitrary files on a server may be obtained.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-306
Published	2025-02-18
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: luxsoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-02-18 01:15 UTCPublished CVE record published
2026-06-17 09:00 UTCUpdated Record last modified

luxsoft luxcal web calendar UPGRADE

Affected: < 5.3.3l · < 5.3.3m

Fixed in: 5.3.3l, 5.3.3m

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy luxcal-web-calendar || rpm -q luxcal-web-calendar || luxcal-web-calendar --version

2. UPGRADE to 5.3.3l (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade luxcal-web-calendar

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade luxcal-web-calendar

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-2025-25224?

luxcal web calendar: upgrade to 5.3.3l, 5.3.3m. Exact commands for each OS are on this page.

Is CVE-2025-25224 being exploited?

CVE-2025-25224 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-2025-25224 affect?

CVE-2025-25224 affects luxcal web calendar. Severity is high (CVSS 7.5). The LuxCal Web Calendar prior to 5.3.3M (MySQL version) and prior to 5.3.3L (SQLite version) contains a missing authentication vulnerability in dloader.php. If this vulnerability is exploited, arbitrary files on a server may be obtained.

How urgent is CVE-2025-25224?

Priority 48/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

PHP vulnerabilities · MySQL vulnerabilities · SQLite vulnerabilities

Related CVEs

CVE-2025-25223 MEDIUM 5.3 UPGRADE The LuxCal Web Calendar prior to 5.3.3M (MySQL version) and prior to 5.3.3L (SQLite version) contains a path t
CVE-2025-25222 CRITICAL 9.8 UPGRADE The LuxCal Web Calendar prior to 5.3.3M (MySQL version) and prior to 5.3.3L (SQLite version) contains an SQL i
CVE-2025-25221 CRITICAL 9.8 UPGRADE The LuxCal Web Calendar prior to 5.3.3M (MySQL version) and prior to 5.3.3L (SQLite version) contains an SQL i

References

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