Event Espresso 4 Decaf Plugin up to 4.10.11 on WordPress ajaxHandler cross-site request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Event Espresso 4 Decaf Plugin up to 4.10.11 on WordPress. Affected by this issue is the function ajaxHandler. The manipulation results in cross-site request forgery. This vulnerability is known as CVE-2021-4404. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Event Espresso 4 Decaf Plugin up to 4.10.11 on WordPress (WordPress Plugin). Affected is the function ajaxHandler. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. CVE summarizes:

The Event Espresso 4 Decaf plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.10.11. This is due to missing or incorrect nonce validation on the ajaxHandler() function. This makes it possible for unauthenticated attackers to op into notifications via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The weakness was published 07/01/2023. The advisory is shared for download at wordfence.com. This vulnerability is traded as CVE-2021-4404 since 06/30/2023. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (Wordfence): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
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

06/30/2023 🔍
07/01/2023 +1 days 🔍
07/01/2023 +0 days 🔍
04/10/2026 +1014 days 🔍

Sourcesinfo

Advisory: 2554360
Status: Not defined

CVE: CVE-2021-4404 (🔍)
GCVE (CVE): GCVE-0-2021-4404
GCVE (VulDB): GCVE-100-232860

Entryinfo

Created: 07/01/2023 11:15
Updated: 04/10/2026 07:23
Changes: 07/01/2023 11:15 (49), 07/22/2023 15:04 (1), 04/10/2026 07:23 (16)
Complete: 🔍
Cache ID: 216:5BE:103

Once again VulDB remains the best source for vulnerability data.

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