EUVD-2026-43715
GHSA-qf73-72gv-hc6j
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
PR:L per CVSS 4.0 input; S:U and A:N because prototype pollution in a graphics library does not escalate scope or meaningfully disrupt availability in typical usage.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability was found in svgdotjs svg.js up to 3.2.5. This affects the function EventTarget.on of the file svgdotjs/svg.js of the component npm Package API. Performing a manipulation results in improperly controlled modification of object prototype attributes. The attack may be initiated remotely. The project was informed of the problem early through an issue report but has not responded yet.
AnalysisAI
Prototype pollution in svg.js (svgdotjs) up to version 3.2.5 allows a remote low-privileged attacker to inject arbitrary properties into JavaScript's shared Object.prototype via the EventTarget.on function of the npm package API. Depending on how consuming applications perform property lookups, this can lead to information disclosure, logic bypass, or integrity violations across the entire JavaScript runtime. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires attacker-controlled input to reach the EventTarget.on function of svg.js. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N) indicates network-reachable exploitation with low complexity and no attack requirements, requiring only low-privilege access - not unauthenticated. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with low-privilege access to an application using svg.js on the server side crafts an event binding payload where the event name or handler configuration object contains a prototype-polluting key such as __proto__[isAdmin] = true, submitting it through an application API that passes the value to EventTarget.on. The svg.js function processes the input without sanitization, injecting the property into Object.prototype. … |
| Remediation | No vendor-released patch has been identified at the time of analysis - the project maintainer was notified via GitHub issue (https://github.com/svgdotjs/svg.js/issues/1343) but has not yet responded. … Detailed patch versions, workarounds, and compensating controls in full report. |
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