How severe is CVE-2018-15961?

CVE-2018-15961 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2018-15961?

Affected package information for CVE-2018-15961 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2018-15961?

No fixed version has been published for CVE-2018-15961 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2018-15961 actively exploited in the wild?

Yes. There are 12 known exploit references for CVE-2018-15961, including 1 documented proof-of-concept exploit on Exploit-DB and 8 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2018-15961?

CVE-2018-15961 has an EPSS (Exploit Prediction Scoring System) score of 94.4%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2018-15961 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2018-15961 (Adobe ColdFusion Unrestricted File Upload Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2021-11-03. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-05-03. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2018-15961?

CVE-2018-15961 is classified as Unrestricted File Upload (CWE-434). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2018-15961?

CVE-2018-15961 affects adobe coldfusion (3 versions, e.g. 11.0, 2016, 2018). Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2018-15961?

A Nuclei detection template exists for CVE-2018-15961, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2018-15961 published, and has it been updated?

CVE-2018-15961 was published on September 25, 2018 and was last updated on October 23, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2021-11-03 — agencies required to remediate by 2022-05-03

CVE-2018-15961

CRITICAL

Adobe ColdFusion versions July 12 release (2018.0.0.310739), Update 6 and earlier, and Update 14 and earlier have an unrestricted file upload vulnerability. Successful exploitation…

Published

Sep 25, 2018

Updated

Oct 23, 2025

Affected

0 pkgs

Patched

None yet

Exploits

12 known

EPSS Exploitation Probability

via FIRST.org ↗

94.4%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Adobe ColdFusion versions July 12 release (2018.0.0.310739), Update 6 and earlier, and Update 14 and earlier have an unrestricted file upload vulnerability. Successful exploitation could lead to arbitrary code execution.

Affected Products

1 product · 23 configurations

Application

coldfusionadobe

3 versions

11.020162018

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-45979webappsmultiple

Adobe ColdFusion 2018 - Arbitrary File Upload

by Vahagn Vardanyan · Dec 11, 2018

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2018-15961 in your stack?

O3 detects CVE-2018-15961 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

9.8/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

None

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE Classification

CWE-434Unrestricted File Upload

Weaponization

Timeline

Disclosed

Sep 25, 2018

First exploit

Dec 11, 2018

KEV added

Nov 3, 2021

Last updated

Oct 23, 2025

Identifiers

CVE-2018-15961

References

Advisorysecurityfocus.com Advisorysecuritytracker.com Advisoryhelpx.adobe.com Advisorysecurityfocus.com Advisorysecuritytracker.com Advisoryhelpx.adobe.com Advisorycisa.gov Exploit / PoCexploit-db.com Exploit / PoCexploit-db.com

Data from OSV.dev, enriched by O3 Security. Refreshed hourly.