CVE-2019-15858

Woody Ad Snippets <= 2.2.4 - Missing Authorization to Settings Import

2019-08-02 00:00

Strategic Overview

Status: Patched in 2.2.5
Affected Plugin: Woody Code Snippets – Insert PHP, CSS, JS, and Header/Footer Scripts
Affected Version: < 2.2.5
CVSS: 8.8High
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2019-15858

View all Woody Code Snippets – Insert PHP, CSS, JS, and Header/Footer Scripts vulnerabilities

At a glance

CVE-2019-15858 is a high-severity Missing Authorization vulnerability in the Woody Code Snippets WordPress plugin, affecting versions < 2.2.5. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 2.2.5; sites on affected versions should update now. Disclosed August 2019, reported by Jerome Bruandet.

Vulnerability Overview

admin/includes/class.import.snippet.php in the "Woody ad snippets" plugin before 2.2.5 for WordPress allows unauthenticated options import, as demonstrated by storing an XSS payload for remote code execution.

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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-862: Missing Authorization

Reaching this weakness in Woody Code Snippets < 2.2.5 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Woody Code Snippets the fix is 2.2.5: builds < 2.2.5 are affected, anything from 2.2.5 onward is not.

Remediation

Update to version 2.2.5, 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: Woody Code Snippets 2.2.5 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-15858 https://www.wordfence.com/threat-intel/vulnerabilities/id/942ae035-91b3-4330-800c-2dbe94a4b4b5 https://nvd.nist.gov/vuln/detail/CVE-2019-15858

Related records

Other vulnerabilities in Woody Code Snippets – Insert PHP, CSS, JS, and Header/Footer Scripts

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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