CVE-2024-11680 is a critical-severity (CVSS 9.8) Missing Authentication vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2024-12-03) — treat it as actively exploited and patch now. A fix is available — see the affected versions and patch details below.
ProjectSend Unauthenticated Configuration Modification
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2024-12-03. Federal agencies were required to remediate by 2024-12-24.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2024-11680.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2024-11680 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).
Where this sits among everything scored
Of 394,803 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.
Description
ProjectSend versions prior to r1720 are affected by an improper authentication vulnerability. Remote, unauthenticated attackers can exploit this flaw by sending crafted HTTP requests to options.php, enabling unauthorized modification of the application's configuration. Successful exploitation allows attackers to create accounts, upload webshells, and embed malicious JavaScript.
Affected Products
projectsendprojectsendResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
ProjectSend versions prior to r1720 are affected by an improper authenti…
ProjectSend versions prior to r1720 are affected by an improper authenti…
ProjectSend versions prior to r1720 are affected by an improper authenti…
ProjectSend versions prior to r1720 are affected by an improper authenti…
Detection & mitigation playbook
VulnerabilityDetect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Fix
Upgrade the affected component to the fixed release for CVE-2024-11680, or apply your distribution's backported patch — distro builds are often patched at an older version number, so check your vendor's advisory rather than the upstream version alone.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.
How to detect CVE-2024-11680
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2024-11680 -u https://target- Template
- ProjectSend <= r1605 - Improper Authorization
- Severity
- critical
- Impact
- Unauthenticated attackers can bypass authorization checks to perform sensitive actions such as enabling user registration, modifying whitelists, and ultimately achieving remote code execution.
- Remediation
- Upgrade ProjectSend to version r1700 or later.
Template by ProjectDiscovery nuclei-templates (DhiyaneshDK), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2024-11680 in your dependencies?
Find it across , including transitive dependencies.