CVE-2024-10924Public exploitNetwork attack vector

Unauthenticated account takeover via ignored nonce failure

Published Nov 15, 2024 · Updated Jan 23, 2026

Authentication bypass in Really Simple Security plugins 9.0.0 through 9.1.1.1 allows remote attackers to access any site account. The skip_onboarding REST action ignores the error returned when check_login_and_get_user rejects an invalid login nonce and still authenticates the supplied user ID. Two-Factor Authentication must be enabled, a non-default setting; successful exploitation grants the chosen account's privileges, including administrator access.

CVSS severity9.8
Critical
EPSS probability82.03%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Really Simple Security plugins 9.0.0 through 9.1.1.1 allows remote attackers to access any site account. The skip_onboarding REST action ignores the error returned when check_login_and_get_user rejects an invalid login nonce and still authenticates the supplied user ID. Two-Factor Authentication must be enabled, a non-default setting; successful exploitation grants the chosen account's privileges, including administrator access.

The record

CVE
CVE-2024-10924
Published
Nov 15, 2024
Updated
Jan 23, 2026
Vendor
Really Simple Plugins
Product
Really Simple Security Pro
Classifications
CWE-306, CWE-288, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 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=9.0.0 <=9.1.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Really Simple Plugins · Really Simple Security Proversion=9.0.0 <=9.1.1.1
Really Simple Plugins · Really Simple Security (Pro Multisite)version=9.0.0 <=9.1.1.1
Really Simple Plugins · Really Simple Securityversion=9.0.0 <=9.1.1.1

Published CVSS scores

9.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-288Authentication Bypass Using an Alternate Path or Channel
T1078Valid Accounts

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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