CVE-2021-32733: XSS in Nextcloud Text application
nextcloud · security-advisories
Affected: nextcloud security-advisories · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 66% of scored CVEs
DescriptionCVE.org
Nextcloud Text is a collaborative document editing application that uses Markdown. A cross-site scripting vulnerability is present in versions prior to 19.0.13, 20.0.11, and 21.0.3. The Nextcloud Text application shipped with Nextcloud server used a `text/html` Content-Type when serving files to users. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. As a workaround, use a browser that has support for Content-Security-Policy.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- nextcloud · security-advisories< 19.0.13; >= 20.0.0, < 20.0.11; >= 21.0.0, < 21.0.3
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Cross-site Scripting
- Vendor
- nextcloud
- Published
- July 2021
- Bounty reports
- 1 disclosed on HackerOne
Disclosed bug bounty reports about CVE-2021-32733
The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.
- ApiService#fetch serves content as text/html and inline Content-DispositionNextcloud · 2021Valid
CoverageNo articles yet
No CyberSIXT article names CVE-2021-32733 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.