CVE-2014-4515

Anyfont <= 2.2.3 - Cross-Site Scripting

2014-07-02 00:00
Prajal Kulkarni

Strategic Overview

Status
Unpatched
Affected Plugin
anyfont
Affected Version
<= 2.2.3
CVSS
7.2High
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2014-4515
View all anyfont vulnerabilities

At a glance

CVE-2014-4515 is a high-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the anyfont WordPress plugin, affecting versions <= 2.2.3. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed July 2014, reported by Prajal Kulkarni.

Vulnerability Overview

Cross-site scripting (XSS) vulnerability in mce_anyfont/dialog.php in the AnyFont plugin 2.2.3 and earlier for WordPress allows remote attackers to inject arbitrary web script or HTML via the text parameter.

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, and no interaction from a victim user.

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

Reaching this weakness in anyfont <= 2.2.3 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. No fixed build of this plugin is recorded for anyfont yet, so installs running <= 2.2.3 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

The attempt arrives as an ordinary request to anyfont: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

  • Firewall
  • Alerts

External References

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