CVE-2023-45827 is a high-severity (CVSS 7.3) CWE-1321 vulnerability in @clickbar/dot-diver. A fix is available for @clickbar/dot-diver — see the affected versions and patch details below.
Prototype Pollution vulnerability in @clickbar/dot-diver
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-45827.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
@clickbar/dot-divernpmDescription
Summary
There is a Prototype Pollution(PP) vulnerability in dot-diver. It can leads to RCE.
Details
//https://github.com/clickbar/dot-diver/tree/main/src/index.ts:277
// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
objectToSet[lastKey] = value
In this code, there is no validation for Prototpye Pollution.
PoC
import { getByPath, setByPath } from '@clickbar/dot-diver'
console.log({}.polluted); // undefined
setByPath({},'constructor.prototype.polluted', 'foo');
console.log({}.polluted); // foo
Impact
It is Prototype Pollution(PP) and it can leads to Dos, RCE, etc.
Credits
Team : NodeBoB
최지혁 ( Jihyeok Choi )
이동하 ( Lee Dong Ha of ZeroPointer Lab )
강성현 ( kang seonghyeun )
박성진 ( sungjin park )
김찬호 ( Chanho Kim )
이수영 ( Lee Su Young )
김민욱 ( MinUk Kim )
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @clickbar/dot-diver | all versions | 1.0.2npm install @clickbar/dot-diver@1.0.2 |
Affected Products
dot-diverclickbarDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @clickbar/dot-diver, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update @clickbar/dot-diver to 1.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-45827 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.
Frequently Asked Questions
Is CVE-2023-45827 in your dependencies?
Find it across npm, including transitive dependencies.