Technology · Packagist
october/backend (Packagist) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 7 vulnerabilities in october/backend (Packagist): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2021-21265, was published on 10 March 2021.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
Latest october/backend (Packagist) vulnerabilities
- CVE-2021-21265: October CMS vulnerable to Potential Host Header Poisoning on misconfigured serversinfoEPSS 1.8%
- CVE-2020-15249: Stored XSS by authenticated backend user with access to upload fileslowCVSS 3.1EPSS 0.5%
- CVE-2020-15248: Privilege escalation by backend users assigned to the default "Publisher" system rolelowCVSS 3.1EPSS 0.3%
- CVE-2020-11083: Stored XSS in OctoberlowCVSS 3.1EPSS 1.1%
- CVE-2020-4061: Cross-site Scripting in OctoberlowCVSS 3.1EPSS 0.8%
- CVE-2020-5299: Potential CSV Injection vector in OctoberCMSlowCVSS 3.1EPSS 1.0%
- CVE-2020-5298: Reflected XSS when importing CSV in OctoberCMSlowCVSS 3.1EPSS 0.9%
Most severe october/backend (Packagist) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2020-11083: Stored XSS in OctoberlowCVSS 3.1EPSS 1.1%
- CVE-2020-5299: Potential CSV Injection vector in OctoberCMSlowCVSS 3.1EPSS 1.0%
- CVE-2020-5298: Reflected XSS when importing CSV in OctoberCMSlowCVSS 3.1EPSS 0.9%
- CVE-2020-4061: Cross-site Scripting in OctoberlowCVSS 3.1EPSS 0.8%
- CVE-2020-15249: Stored XSS by authenticated backend user with access to upload fileslowCVSS 3.1EPSS 0.5%
- CVE-2020-15248: Privilege escalation by backend users assigned to the default "Publisher" system rolelowCVSS 3.1EPSS 0.3%
- CVE-2021-21265: October CMS vulnerable to Potential Host Header Poisoning on misconfigured serversinfoEPSS 1.8%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/october-backend.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "october/backend (Packagist) vulnerabilities", https://junglewise.ai/threats/technologies/october-backend, 28 September 2026.