MailerLite Plugin up to 1.7.18 on WordPress 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 (≈)
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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.
5.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in MailerLite Plugin up to 1.7.18 on WordPress and classified as critical. This vulnerability affects unknown code. The manipulation leads to authorization. This vulnerability is documented as CVE-2026-25420. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in MailerLite Plugin up to 1.7.18 on WordPress and classified as critical. This issue affects an unknown part. The manipulation 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 confidentiality, integrity, and availability. The summary by CVE is:

Missing Authorization vulnerability in MailerLite MailerLite official-mailerlite-sign-up-forms allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MailerLite: from n/a through <= 1.7.18.

The weakness was released by Daroo. It is possible to read the advisory at patchstack.com. The identification of this vulnerability is CVE-2026-25420 since 02/02/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/22/2026).

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 4.3
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/02/2026 CVE reserved
02/19/2026 +17 days Advisory disclosed
02/19/2026 +0 days VulDB entry created
02/22/2026 +2 days VulDB entry last update

Sourcesinfo

Advisory: patchstack.com
Researcher: Daroo
Status: Not defined

CVE: CVE-2026-25420 (🔒)
GCVE (CVE): GCVE-0-2026-25420
GCVE (VulDB): GCVE-100-346811

Entryinfo

Created: 02/19/2026 12:19
Updated: 02/22/2026 00:14
Changes: 02/19/2026 12:19 (53), 02/22/2026 00:14 (11)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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