CVE-2025-31559

WordPress Custom Database Applications by Caspio plugin <= 2.1 - Cross Site Scripting (XSS) vulnerability

Published Mar 31, 2025 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Caspio Bridge Custom Database Applications by Caspio custom-database-applications-by-caspio allows DOM-Based XSS.This issue affects Custom Database Applications by Caspio: from n/a through <= 2.1.

Analysis

AI-generated

Technical impact

The vulnerability is a DOM‑based Cross‑Site Scripting flaw that allows attackers to inject and execute arbitrary scripts in the context of a victim’s browser. The flaw arises from improper neutralization of user input during web page generation, making the victim’s browser run attacker‑supplied code. This can compromise user credentials, deface content, or carry out further social‑engineering attacks. At its core, the weakness is an input validation error identified as CWE‑79.

Affected Systems

The affected product is the Caspio Bridge: Custom Database Applications by Caspio WordPress plugin, version 2.1 or earlier. No additional platform or operating system details are provided, but the plugin functions within the WordPress environment.

Risk and Exploitability

With a CVSS score of 6.5, the vulnerability represents a moderate severity threat. The EPSS score of less than 1% suggests a very low probability of exploitation at this time, and the vulnerability is not listed in CISA’s KEV catalog. The likely attack vector is a user visiting a page served by the plugin and interacting with a form or field that is rendered unsanitized. Because authentication is not required to trigger the script, any visitor can become an attacker if the site is exposed. The impact is primarily administrative overhead and a potential loss of trust in the site rather than broad system compromise.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade the Custom Database Applications by Caspio plugin to version 2.2 or later to receive the vendor‑provided fix.
  • If an upgrade is not immediately possible, disable or remove the plugin from the site to eliminate the vulnerable code path.
  • Implement a strict Content Security Policy that restricts script execution to trusted sources, adding an extra layer of defense against any residual injection attempts.

Generated by OpenCVE AI on May 1, 2026 at 03:04 UTC.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-8747 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Caspio Bridge Custom Database Applications by Caspio allows DOM-Based XSS. This issue affects Custom Database Applications by Caspio: from n/a through 2.1.
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L'}

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Caspio Bridge Custom Database Applications by Caspio allows DOM-Based XSS. This issue affects Custom Database Applications by Caspio: from n/a through 2.1. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Caspio Bridge Custom Database Applications by Caspio custom-database-applications-by-caspio allows DOM-Based XSS.This issue affects Custom Database Applications by Caspio: from n/a through <= 2.1.
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Caspio Bridge Custom Database Applications by Caspio allows DOM-Based XSS. This issue affects Custom Database Applications by Caspio: from n/a through 2.1.
Title WordPress Custom Database Applications by Caspio plugin <= 2.1 - Cross Site Scripting (XSS) vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L'}

Subscriptions

No data.

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Apr 28, 2026, 4:12 PM
Reserved
Mar 31, 2025, 10:05 AM
Status
Deferred
Published
Mar 31, 2025, 1:15 PM
Modified
Jun 17, 2026, 9:10 AM