Frontend File Manager Plugin up to 18.2 on WordPress wpfm_file_meta_update authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Frontend File Manager Plugin up to 18.2 on WordPress. Affected is the function wpfm_file_meta_update. Performing a manipulation results in authorization. This vulnerability is known as CVE-2021-4351. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Frontend File Manager Plugin up to 18.2 on WordPress (WordPress Plugin). It has been classified as critical. This affects the function wpfm_file_meta_update. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on integrity, and availability. The summary by CVE is:

The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Post Meta Change in versions up to, and including, 18.2. This is due to lacking authentication protections, capability checks, and sanitization, all on the wpfm_file_meta_update AJAX action. This makes it possible for unauthenticated attackers to change the meta data of certain posts and pages.

The weakness was published 06/07/2023. It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2021-4351 since 06/06/2023. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/09/2026).

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: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.8
CNA Vector (Wordfence): 🔍

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

06/06/2023 🔍
06/07/2023 +1 days 🔍
06/07/2023 +0 days 🔍
04/09/2026 +1037 days 🔍

Sourcesinfo

Advisory: wordfence.com
Status: Not defined

CVE: CVE-2021-4351 (🔍)
GCVE (CVE): GCVE-0-2021-4351
GCVE (VulDB): GCVE-100-230955

Entryinfo

Created: 06/07/2023 08:04
Updated: 04/09/2026 21:49
Changes: 06/07/2023 08:04 (48), 04/09/2026 21:49 (26)
Complete: 🔍
Cache ID: 216::103

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

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