Medium severity6.1NVD Advisory· Published Mar 28, 2017· Updated Jun 17, 2026
CVE-2016-9459
CVE-2016-9459
Description
Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are vulnerable to a log pollution vulnerability potentially leading to a local XSS. The download log functionality in the admin screen is delivering the log in JSON format to the end-user. The file was delivered with an attachment disposition forcing the browser to download the document. However, Firefox running on Microsoft Windows would offer the user to open the data in the browser as an HTML document. Thus any injected data in the log would be executed.
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Affected products
4Patches
Vulnerability mechanics
References
8- github.com/nextcloud/server/commit/94975af6db1551c2d23136c2ea22866a5b416070nvdIssue TrackingPatchThird Party Advisory
- github.com/owncloud/core/commit/044ee072a647636b1a17c89265c7233b35371335nvdIssue TrackingPatchThird Party Advisory
- github.com/owncloud/core/commit/b7fa2c5dc945b40bc6ed0a9a0e47c282ebf043e1nvdIssue TrackingPatchThird Party Advisory
- github.com/owncloud/core/commit/efa35d621dc7ff975468e636a5d1c153511296dcnvdIssue TrackingPatchThird Party Advisory
- nextcloud.com/security/advisory/nvdPatchVendor Advisory
- owncloud.org/security/advisorynvdPatchVendor Advisory
- hackerone.com/reports/146278nvdExploitThird Party Advisory
- www.securityfocus.com/bid/97284nvdThird Party AdvisoryVDB Entry
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