CVE-2021-4333Network attack vector

Plugin state changes via missing nonce validation

Published Mar 7, 2023 · Updated Apr 8, 2026

Cross-site request forgery in VeronaLabs WP Statistics 13.1.1 and earlier allows remote attackers to change installed plugin states. The view() function accepts an administrative request without correct nonce validation and passes the requested plugin action to activation or deactivation logic. Exploitation requires a logged-in site administrator to open a crafted link, after which arbitrary plugins can be activated or deactivated with that administrator's authority.

CVSS severity6.5
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in VeronaLabs WP Statistics 13.1.1 and earlier allows remote attackers to change installed plugin states. The view() function accepts an administrative request without correct nonce validation and passes the requested plugin action to activation or deactivation logic. Exploitation requires a logged-in site administrator to open a crafted link, after which arbitrary plugins can be activated or deactivated with that administrator's authority.

The record

CVE
CVE-2021-4333
Published
Mar 7, 2023
Updated
Apr 8, 2026
Vendor
VeronaLabs
Product
WP Statistics
Classifications
CWE-352, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=13.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

VeronaLabs · WP Statisticsversion=0 <=13.1.1

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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