CVE-2021-24238

Realteo < 1.2.4 - Missing Authorization

2021-03-20 00:00

Strategic Overview

Status: Patched in 1.2.4
Affected Plugin: Realteo
Affected Version: < 1.2.4
CVSS: 6.5Medium
Weakness type: CWE-284 · Improper Access Control
CVE: CVE-2021-24238

At a glance

CVE-2021-24238 is a medium-severity Improper Access Control vulnerability in the Realteo WordPress plugin, affecting versions < 1.2.4. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high integrity impact). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 1.2.4; sites on affected versions should update now. Disclosed March 2021, reported by R3N0.

Vulnerability Overview

The Realteo WordPress plugin before 1.2.4, used by the Findeo Theme, did not ensure that the requested property to be deleted belong to the user making the request, allowing any authenticated users to delete arbitrary properties by tampering with the property_id parameter.

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 integrity.

CWE-284: Improper Access Control

Reaching this weakness in Realteo < 1.2.4 takes a caller who can reach the endpoint. Improper access control means the code decides what a caller may do using something other than their actual permissions, so the decision can be wrong without any check appearing to be missing.

Whoever can shape the request decides the answer, so the protected action runs for callers the code never meant to allow. For Realteo the fix is 1.2.4: builds < 1.2.4 are affected, anything from 1.2.4 onward is not.

Remediation

Update to version 1.2.4, 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: Realteo 1.2.4 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24238 https://www.wordfence.com/threat-intel/vulnerabilities/id/72f3541e-e589-4f21-ab51-89dba704b271 https://nvd.nist.gov/vuln/detail/CVE-2021-24238

Related records

Other vulnerabilities in Realteo

CVSS Vector

6.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityNone

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