Cyber Resilience

CVE-2025-22535

High

Published: 09 January 2025

Published
09 January 2025
Modified
23 April 2026
KEV Added
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Patch
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CVSS Score v3.1 8.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
EPSS Score 0.0013 32.0th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-22535 is a high-severity SQL Injection (CWE-89) vulnerability. Its CVSS base score is 8.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 32.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-22535 is an Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability, classified under CWE-89, affecting the WPListCal WordPress plugin developed by jonkern (wplistcal). This issue impacts all versions from n/a through 1.3.5, as published on 2025-01-09.

The vulnerability carries a CVSS v3.1 base score of 8.5 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L), indicating it can be exploited remotely over the network by low-privileged users (PR:L) with low attack complexity and no user interaction required. Attackers can achieve high-impact confidentiality loss, such as extracting sensitive data from the database, alongside limited availability impact, with the attack's scope changing to affect other system components.

The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/wplistcal/vulnerability/wordpress-wplistcal-plugin-1-3-5-sql-injection-vulnerability?_s_id=cve documents this SQL injection vulnerability in the WPListCal plugin up to version 1.3.5, providing details for security practitioners on detection and remediation.

EU & UK References

Vulnerability details

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in jonkern WPListCal wplistcal allows SQL Injection.This issue affects WPListCal: from n/a through <= 1.3.5.

CWE(s)
CWE-89

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

SQL injection in public-facing WordPress plugin directly matches exploitation of a web application for initial access and data retrieval.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-39334Shared CWE-89
CVE-2024-13488Shared CWE-89
CVE-2026-20002Shared CWE-89
CVE-2025-1446Shared CWE-89
CVE-2025-22699Shared CWE-89
CVE-2026-36232Shared CWE-89
CVE-2026-31871Shared CWE-89
CVE-2026-33078Shared CWE-89
CVE-2026-46359Shared CWE-89
CVE-2025-22691Shared CWE-89

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly requires identification, reporting, and correction of the specific SQL injection flaw (CVE-2025-22535) in WPListCal plugin versions through 1.3.5.

SI-10 Information Input Validation good match
prevent

Prevents exploitation of the improper neutralization of special elements in SQL commands by mandating validation of all information inputs to the vulnerable WPListCal plugin.

SC-7 Boundary Protection partial match
preventdetect

Enforces boundary protection mechanisms like web application firewalls to monitor and block SQL injection payloads targeting the low-privileged remote exploit in WPListCal.

References