CVE-2015-4127

Church Admin < 0.810 - Stored Cross-Site Scripting

2015-05-22 00:00

Strategic Overview

Status: Patched in 0.810
Affected Plugin: Church Admin
Affected Version: < 0.810
CVSS: 6.1Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2015-4127

At a glance

CVE-2015-4127 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Church Admin WordPress plugin, affecting versions < 0.810. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 0.810; sites on affected versions should update now. Disclosed May 2015, reported by Viktor Gazdag.

Vulnerability Overview

Cross-site scripting (XSS) vulnerability in the church_admin plugin before 0.810 for WordPress allows remote attackers to inject arbitrary web script or HTML via the address parameter, as demonstrated by a request to index.php/2015/05/21/church_admin-registration-form/.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Church Admin < 0.810 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Church Admin the fix is 0.810: builds < 0.810 are affected, anything from 0.810 onward is not.

Remediation

Update to version 0.810, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Church Admin: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Church Admin 0.810 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2015-4127 https://www.wordfence.com/threat-intel/vulnerabilities/id/54e7ccaf-2b16-4e36-a8ec-8f1f61193ffd https://nvd.nist.gov/vuln/detail/CVE-2015-4127

Related records

Same weakness class

Other vulnerabilities in Church Admin

CVSS Vector

6.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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