CVE-2021-24150

Like Button Rating ♥ LikeBtn < 2.6.32 - Server-Side Request Forgery

2021-02-06 00:00

Strategic Overview

Status: Patched in 2.6.32
Affected Plugin: Like Button Rating ♥ LikeBtn
Affected Version: < 2.6.32
CVSS: 7.5High
Weakness type: CWE-918 · Server-Side Request Forgery (SSRF)
CVE: CVE-2021-24150

View all Like Button Rating ♥ LikeBtn vulnerabilities

At a glance

CVE-2021-24150 is a high-severity Server-Side Request Forgery (SSRF) vulnerability in the Like Button Rating ♥ LikeBtn WordPress plugin, affecting versions < 2.6.32. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 2.6.32; sites on affected versions should update now. Disclosed February 2021, reported by Lauritz Holme.

Vulnerability Overview

The LikeBtn WordPress Like Button Rating ♥ LikeBtn WordPress plugin before 2.6.32 was vulnerable to Unauthenticated Full-Read Server-Side Request Forgery (SSRF).

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. A successful exploit has high impact on confidentiality.

CWE-918: Server-Side Request Forgery (SSRF)

Reaching this weakness in Like Button Rating ♥ LikeBtn < 2.6.32 takes a caller who can reach the endpoint. Server-side request forgery means the application fetches a URL supplied by the caller, turning the server into a proxy for requests the attacker could not make directly.

The request originates from inside the hosting network, which is how these flaws reach cloud metadata endpoints, internal admin panels and services that trust local traffic. For Like Button Rating ♥ LikeBtn the fix is 2.6.32: builds < 2.6.32 are affected, anything from 2.6.32 onward is not.

Remediation

Update to version 2.6.32, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Like Button Rating ♥ LikeBtn: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Like Button Rating ♥ LikeBtn 2.6.32 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24150 https://www.wordfence.com/threat-intel/vulnerabilities/id/0e22815e-1f06-4a46-90eb-98125ae97ba4 https://nvd.nist.gov/vuln/detail/CVE-2021-24150

Related records

Other vulnerabilities in Like Button Rating ♥ LikeBtn

CVSS Vector

7.5

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

Base

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

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