Nextcloud Server before 10.0.1 & ownCloud Server before 9.0.6 and 9.1.2 suffer from Reflected XSS in the Gallery application. The gallery app was not properly sanitizing exception messages from the Nextcloud/ownCloud server. Due to an endpoint where an attacker could influence the error message, this led to a reflected Cross-Site-Scripting vulnerability.
CVE-2016-9466
Score 6.1 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 6.1; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(medium)
- EG Risk
- 33(Track)EG Risk 33/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity61% × 45%Exploitation2% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 2%
- EPSS %ILE
- 75%
- KEV
- Not listed
Published
March 28, 2017
Last Modified
June 17, 2026
References (12)
- support@hackeronehttps://github.com/nextcloud/gallery/commit/f9ef505c1d60c9041e251682e0f6b3daad952d58
- support@hackeronehttps://github.com/owncloud/gallery/commit/b3b3772fb9bec61ba10d357bef42b676fa474eee
- support@hackeronehttps://github.com/owncloud/gallery/commit/dc4887f1afcc0cf304f4a0694075c9364298ad8a
- support@hackeronehttps://hackerone.com/reports/165686
- support@hackeronehttps://nextcloud.com/security/advisory/?id=nc-sa-2016-009
- support@hackeronehttps://owncloud.org/security/advisory/?id=oc-sa-2016-019
- af854a3a-2127-422b-91ae-364da2661108https://github.com/nextcloud/gallery/commit/f9ef505c1d60c9041e251682e0f6b3daad952d58
- af854a3a-2127-422b-91ae-364da2661108https://github.com/owncloud/gallery/commit/b3b3772fb9bec61ba10d357bef42b676fa474eee
- af854a3a-2127-422b-91ae-364da2661108https://github.com/owncloud/gallery/commit/dc4887f1afcc0cf304f4a0694075c9364298ad8a
- af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/165686
- af854a3a-2127-422b-91ae-364da2661108https://nextcloud.com/security/advisory/?id=nc-sa-2016-009
- af854a3a-2127-422b-91ae-364da2661108https://owncloud.org/security/advisory/?id=oc-sa-2016-019
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 27× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 124 total refreshes for this CVE.
- 2026-08-19 16:59 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2016-9466?
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What is the CVSS score of CVE-2016-9466?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2016-9466
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