CVE-2014-9283

BestWebSoft Captcha <= 4.0.6 - CAPTCHA Bypass

2014-12-05 00:00
Anonymous

At a glance

CVE-2014-9283 is a medium-severity Guessable CAPTCHA vulnerability in the Captcha by BestWebSoft WordPress plugin, affecting versions < 4.0.7. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.0.7; sites on affected versions should update now. Disclosed December 2014.

Vulnerability Overview

The BestWebSoft Captcha plugin before 4.0.7 for WordPress allows remote attackers to bypass the CAPTCHA protection mechanism and obtain administrative access via unspecified vectors.

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-804: Guessable CAPTCHA

The product uses a CAPTCHA challenge, but the challenge can be guessed or automatically recognized by a non-human actor.

Remediation

Update to version 4.0.7, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Captcha by BestWebSoft 4.0.7 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

Related records

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