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CVE-2020-4061Cross-site Scripting in OctoberPotential self-XSS when pasting content from malicious websites
- 3.7LowCVSS base score
- 0.82%Exploitation in 30 daysEPSS · top 42% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In October from version 1.0.319 and before version 1.0.467, pasting content copied from malicious websites into the Froala richeditor could result in a successful self-XSS attack. This has been fixed in 1.0.467.
Timeline
ID reserved
By GitHub_M
- 6 months later
· 6 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Low3.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N |
| NVDNVD · Modified | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.82% · top 42% of all CVEs (12 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.7.
Affected products
- affected >= 1.0.319, < 1.0.467
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Packagistoctober/backendGHSA-3pc2-fm7p-q2vg (opens in a new tab)
References
References3
- https://github.com/octobercms/october/security/advisories/GHSA-3pc2-fm7p-q2vg (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/octobercms/october/commit/b384954a29b89117e1c0d6035b3ede4f46df67c5 (opens in a new tab)x_refsource_MISCx_transferred
- https://research.securitum.com/the-curious-case-of-copy-paste/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-0531 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-3pc2-fm7p-q2vg (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-4061)Record last updated .