CVE-2021-24654Public exploitNetwork attack vector

Stored XSS via unsanitized profile picture URL

Published Oct 4, 2021 · Updated Aug 3, 2024

Stored XSS in WPEverest User Registration & Membership before 2.0.2 allows remote authenticated users to execute script via profile data. The user_registration_update_profile_details AJAX action stores a directly submitted user_registration_profile_pic_url without adequate sanitization, and the profile view renders the value into the page. Subscriber access and a valid profile-update nonce are sufficient; the script runs when any user views the poisoned profile, within that viewer's browser session.

CVSS severity5.4
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in WPEverest User Registration & Membership before 2.0.2 allows remote authenticated users to execute script via profile data. The user_registration_update_profile_details AJAX action stores a directly submitted user_registration_profile_pic_url without adequate sanitization, and the profile view renders the value into the page. Subscriber access and a valid profile-update nonce are sufficient; the script runs when any user views the poisoned profile, within that viewer's browser session.

The record

CVE
CVE-2021-24654
Published
Oct 4, 2021
Updated
Aug 3, 2024
Vendor
WPEverest
Product
User Registration & Membership
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 4, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=2.0.2 <2.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPEverest · User Registration & Membershipversion=2.0.2 <2.0.2

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NVDAV:N/AC:M/Au:S/C:N/I:P/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

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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