Cross-site Scripting (XSS)
Published Oct 6, 2020
9.9
CRITICALCVSS 3.1
EPSS 1.48%
Description
This affects the package hellojs before 1.18.6. The code get the param oauth_redirect from url and pass it to location.assign without any check and sanitisation. So we can simply pass some XSS payloads into the url param oauth_redirect, such as javascript:alert(1).
Affected products
- Vendor n/a Product Hellojs Defaultn/a
- Version unspecifiedStatusaffectedConstraints<1.18.6
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Hellojs | n/a |
|
- < 1.18.6
No data.
No Red Hat product state for this CVE.
hellojs
npm
Introduced 0 Fixed 1.18.6
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | hellojs | 0 | 1.18.6 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.48% (0.01476) | 72.94th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.48% (0.01476) | 72.69th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.18% (0.00178) | 55.37th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.18% (0.00178) | 54.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00121) | 44.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.74% (0.05736) | 77.22th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.63% (0.03630) | 71.73th | v1 |
| Jan 6, 2022 | 3.63% (0.03630) | 71.48th | v1 |
| Jan 5, 2022 | 0.83% (0.00833) | 58.90th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (5)
- https://github.com/MrSwitch/hello.js/blob/3b79ec93781b3d7b9c0b56f598e060301d1f3e73/dist/hello.all.js%23L1545 x_refsource_MISCBroken Link
- https://github.com/MrSwitch/hello.js/commit/d6f5137f30de6e0ef7048191ee6ae575fdc2f669 x_refsource_MISCPatchThird Party Advisory
- https://github.com/advisories/GHSA-7jh9-6cpf-h4m7 Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-7741
- https://snyk.io/vuln/SNYK-JS-HELLOJS-1014546 x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/MrSwitch/hello.js/blob/3b79ec93781b3d7b9c0b56f598e060301d1f3e73/dist/hello.all.js%23L1545 | x_refsource_MISCBroken Link | |
| https://github.com/MrSwitch/hello.js/commit/d6f5137f30de6e0ef7048191ee6ae575fdc2f669 | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/advisories/GHSA-7jh9-6cpf-h4m7 | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2020-7741 | ||
| https://snyk.io/vuln/SNYK-JS-HELLOJS-1014546 | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.