CVE-2023-6109

YOP Poll <= 6.5.26 - Race Condition to Vote Manipulation

2023-11-13 00:00

Strategic Overview

Status: Patched in 6.5.27
Affected Plugin: YOP Poll
Affected Version: <= 6.5.26
CVSS: 5.3Medium
Weakness type: CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE: CVE-2023-6109

At a glance

CVE-2023-6109 is a medium-severity Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the YOP Poll WordPress plugin, affecting versions <= 6.5.26. 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 6.5.27; sites on affected versions should update now. Disclosed November 2023, reported by RIN MIYACHI.

Vulnerability Overview

The YOP Poll plugin for WordPress is vulnerable to a race condition in all versions up to, and including, 6.5.26. This is due to improper restrictions on the add() function. This makes it possible for unauthenticated attackers to place multiple votes on a single poll even when the poll is set to one vote per person.

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-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Remediation

Update to version 6.5.27, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: YOP Poll 6.5.27 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-6109 https://www.wordfence.com/threat-intel/vulnerabilities/id/360b1927-a863-46be-ad11-3f6251c75a3c https://nvd.nist.gov/vuln/detail/CVE-2023-6109

Related records

Other vulnerabilities in YOP Poll

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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