CVE-2024-11680Known exploitationPublic exploitNetwork attack vector

Unauthenticated server code execution via deferred authorization checks

Published Nov 26, 2024 · Updated Jul 14, 2026

Improper authentication in ProjectSend before r1720 allows remote attackers to alter application configuration through crafted HTTP requests. In options.php, POST values are saved to the database before header.php performs session and role checks, so unauthenticated requests reach administrative settings. No account is required; enabling registration, auto-approval, uploads, and executable extensions permits account creation and webshell upload for server-side PHP code execution.

CVSS severity9.8
Critical
EPSS probability91.70%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in ProjectSend before r1720 allows remote attackers to alter application configuration through crafted HTTP requests. In options.php, POST values are saved to the database before header.php performs session and role checks, so unauthenticated requests reach administrative settings. No account is required; enabling registration, auto-approval, uploads, and executable extensions permits account creation and webshell upload for server-side PHP code execution.

The record

CVE
CVE-2024-11680
Published
Nov 26, 2024
Updated
Jul 14, 2026
Vendor
ProjectSend
Product
ProjectSend
Classifications
CWE-306, CAPEC-114, T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 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 <r1720

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ProjectSend · ProjectSendversion=0 <r1720

Published CVSS scores

9.8VulnCheckCVSS: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.

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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 exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CAPEC-114Authentication Abuse
T1190Exploit Public-Facing Application
T1505.003Web Shell

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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