# Nextcloud Forms vulnerabilities

Source: https://junglewise.ai/threats/technologies/forms  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/forms.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in Nextcloud Forms: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-80491, was published on 12 September 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 4 (0 critical, 0 exploited in the wild)

## About Nextcloud Forms

A survey and questionnaire application for the Nextcloud platform.

## Latest Nextcloud Forms vulnerabilities

- [CVE-2026-80491: SAMO Forms SQL injection in unauthenticated actions](https://junglewise.ai/threats/cve-2026-80491-samo-forms-sql-injection-in-unauthenticated-actions) (high, CVSS 8.6, published 12 Sep 2026)
- [CVE-2026-45543: Nextcloud Forms unauthorized file access after collaborator removal](https://junglewise.ai/threats/cve-2026-45543-nextcloud-forms-unauthorized-file-access-after-collaborator) (medium, CVSS 5.3, published 1 Jun 2026)
- [CVE-2026-45267: Nextcloud Forms missing authorization in form submissions](https://junglewise.ai/threats/cve-2026-45267-nextcloud-forms-missing-authorization-in-form-submissions) (medium, CVSS 6.5, published 1 Jun 2026)
- [CVE-2017-16015: forms Cross-Site Scripting in HTML generation](https://junglewise.ai/threats/cve-2017-16015-forms-cross-site-scripting-in-html-generation) (low, CVSS 3, published 9 Nov 2018)

## Most severe Nextcloud Forms vulnerabilities

- [CVE-2026-80491: SAMO Forms SQL injection in unauthenticated actions](https://junglewise.ai/threats/cve-2026-80491-samo-forms-sql-injection-in-unauthenticated-actions) (high, CVSS 8.6, published 12 Sep 2026)
- [CVE-2026-45267: Nextcloud Forms missing authorization in form submissions](https://junglewise.ai/threats/cve-2026-45267-nextcloud-forms-missing-authorization-in-form-submissions) (medium, CVSS 6.5, published 1 Jun 2026)
- [CVE-2026-45543: Nextcloud Forms unauthorized file access after collaborator removal](https://junglewise.ai/threats/cve-2026-45543-nextcloud-forms-unauthorized-file-access-after-collaborator) (medium, CVSS 5.3, published 1 Jun 2026)
- [CVE-2017-16015: forms Cross-Site Scripting in HTML generation](https://junglewise.ai/threats/cve-2017-16015-forms-cross-site-scripting-in-html-generation) (low, CVSS 3, published 9 Nov 2018)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 1 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Nextcloud technologies

- [Nextcloud Server](https://junglewise.ai/threats/technologies/nextcloud-server): 14 vulnerabilities
- [Nextcloud Enterprise Server](https://junglewise.ai/threats/technologies/nextcloud-enterprise-server): 7 vulnerabilities
- [Nextcloud Tables](https://junglewise.ai/threats/technologies/tables): 5 vulnerabilities
- [Nextcloud Approval](https://junglewise.ai/threats/technologies/approval): 4 vulnerabilities
- [Nextcloud Calendar](https://junglewise.ai/threats/technologies/calendar): 4 vulnerabilities
- [Nextcloud User OIDC](https://junglewise.ai/threats/technologies/user-oidc): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Nextcloud Forms vulnerabilities", https://junglewise.ai/threats/technologies/forms, 9 November 2026.