CVE-2020-25286

WordPress Core < 5.4.2 - Comment Disclosure

2020-06-10 00:00

Strategic Overview

Status: Patched in 3.7.34
Affected Core: WordPress 5.3
Affected Version: 3.7 – 5.3.3 · 18 branches
CVSS: 5.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2020-25286

At a glance

CVE-2020-25286 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the WordPress 5.3 WordPress release line, affecting 3.7 – 5.3.3 · 18 branches. 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 3.7.34; sites on affected versions should update now. Disclosed June 2020, reported by Carolina Nymark.

Vulnerability Overview

In wp-includes/comment-template.php in WordPress before 5.4.2, comments from a post or page could sometimes be seen in the latest comments even if the post or page was not public.

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-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in WordPress 5.3 3.7 – 5.3.3 · 18 branches takes a caller who can reach the endpoint. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For WordPress 5.3 the fix is 3.7.34: builds 3.7 – 5.3.3 · 18 branches are affected, anything from 3.7.34 onward is not.

Remediation

Update to one of the following versions, or a newer patched version: 3.7.34, 3.8.34, 3.9.32, 4.0.31, 4.1.31, 4.2.28, 4.3.24, 4.4.23, 4.5.22, 4.6.19, 4.7.18, 4.8.14, 4.9.15, 5.0.10, 5.1.6, 5.2.7, 5.3.4, 5.4.2

How does WordSec protect against this?

The fix is the thing that ends this: updating to 3.7.34 is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2020-25286 https://www.wordfence.com/threat-intel/vulnerabilities/id/8055886f-d0a9-4784-8430-41816db6c884 https://nvd.nist.gov/vuln/detail/CVE-2020-25286

Related records

Same weakness class

Other vulnerabilities in WordPress 5.3

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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