CVE-2021-24945

Like Button Rating <= 2.6.37 - Unauthorised Vote Export to Email & IP Addresses Disclosure

2021-11-11 00:00

Strategic Overview

Status: Patched in 2.6.38
Affected Plugin: Like Button Rating ♥ LikeBtn
Affected Version: <= 2.6.37
CVSS: 6.5Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2021-24945

View all Like Button Rating ♥ LikeBtn vulnerabilities

At a glance

CVE-2021-24945 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Like Button Rating ♥ LikeBtn WordPress plugin, affecting versions <= 2.6.37. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high confidentiality impact). The issue is fixed in version 2.6.38; sites on affected versions should update now. Disclosed November 2021, reported by Krzysztof Zając.

Vulnerability Overview

The Like Button Rating ♥ LikeBtn WordPress plugin before 2.6.38 does not have any authorisation and CSRF checks in the likebtn_export_votes AJAX action, which could allow any authenticated user, such as subscriber, to get a list of email and IP addresses of people who liked content from the blog.

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 interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in Like Button Rating ♥ LikeBtn <= 2.6.37 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 Like Button Rating ♥ LikeBtn the fix is 2.6.38: builds <= 2.6.37 are affected, anything from 2.6.38 onward is not.

Remediation

Update to version 2.6.38, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Like Button Rating ♥ LikeBtn 2.6.38 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24945 https://www.wordfence.com/threat-intel/vulnerabilities/id/6a19972e-6ff9-4d18-a327-5cafef96a637 https://nvd.nist.gov/vuln/detail/CVE-2021-24945

Related records

Other vulnerabilities in Like Button Rating ♥ LikeBtn

CVSS Vector

6.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

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