VDB-339830 · CVE-2025-13529 · GCVE-0-2025-13529

Unify Plugin up to 3.4.9 on WordPress unify_plugin_downgrade authorization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Unify Plugin up to 3.4.9 on WordPress. The impacted element is an unknown function. Such manipulation of the argument unify_plugin_downgrade leads to authorization. This vulnerability is referenced as CVE-2025-13529. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Unify Plugin up to 3.4.9 on WordPress. It has been rated as critical. Affected by this issue is an unknown functionality. The manipulation of the argument unify_plugin_downgrade with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is integrity, and availability. CVE summarizes:

The Unify plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'init' action in all versions up to, and including, 3.4.9. This makes it possible for unauthenticated attackers to delete specific plugin options via the 'unify_plugin_downgrade' parameter.

The advisory is available at wordfence.com. This vulnerability is handled as CVE-2025-13529. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/07/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

WordPress Plugin

Name

Unify Plugin

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/07/2026 Advisory disclosed
01/07/2026 +0 days VulDB entry created
01/07/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wordfence.com
Status: Not defined

CVE: CVE-2025-13529 (🔒)
GCVE (CVE): GCVE-0-2025-13529
GCVE (VulDB): GCVE-100-339830

Entryinfo

Created: 01/07/2026 08:07
Updated: 01/07/2026 14:04
Changes: 01/07/2026 08:07 (50), 01/07/2026 14:04 (12)
Complete: 🔍
Cache ID: 216::103