Is CVE-2025-25221 actively exploited?

No active exploitation of CVE-2025-25221 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-25221 be exploited remotely?

Yes. CVE-2025-25221 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-25221?

CVE-2025-25221 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2025-25221

CWE-89Published: February 18, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The LuxCal Web Calendar prior to 5.3.3M (MySQL version) and prior to 5.3.3L (SQLite version) contains an SQL injection vulnerability in pdf.php. If this vulnerability is exploited, information in a database may be deleted, altered, or retrieved.

NVD Source

Risk Analysis

An SQL injection vulnerability exists in the pdf.php file of LuxCal Web Calendar, enabling unauthenticated attackers to compromise database integrity. Successful exploitation allows for the unauthorized deletion, modification, or extraction of sensitive data. The critical severity rating underscores the urgency of addressing this remotely exploitable flaw.

There is no known public exploit for this vulnerability, and it is not in the KEV catalog. It is remotely exploitable with low attack complexity.

Recommended Action

Upgrade to LuxCal Web Calendar version 5.3.3M (MySQL) or 5.3.3L (SQLite) immediately. Ensure all database interactions use prepared statements.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-25221 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.