CVE-2021-32782— Nextcloud 跨站脚本漏洞
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I. CVE-2021-32782の基本情報
脆弱性情報
脆弱性についてご質問がありますか？Shenlongの分析が参考になるかご確認ください！
Shenlongの10の質問を表示 ↗ 高度な大規模言語モデル技術を使用していますが、出力には不正確または古い情報が含まれる可能性があります。Shenlongはデータの正確性を確保するよう努めていますが、実際の状況に基づいて検証・判断してください。
脆弱性タイトル
Cross-Site Scripting in Nextcloud Circles
ソース: NVD (National Vulnerability Database)
脆弱性説明
Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application is vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Circles application is upgraded to 0.21.3, 0.20.10 or 0.19.14 to resolve this issue. As a workaround users may use a browser that has support for Content-Security-Policy. A notable exemption is Internet Explorer which does not support CSP properly.
ソース: NVD (National Vulnerability Database)
CVSS情報
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Nextcloud 跨站脚本漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Circles 中存在跨站脚本漏洞，该漏洞源于产品的Content-Security-Policy在某些浏览器中未能正确处理输入输入数据。攻击者可通过该漏洞执行客户端代码。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
| ベンダー | プロダクト | 影響を受けるバージョン | CPE | 購読 |
|---|---|---|---|---|
| nextcloud | security-advisories | < 0.19.1 | - |
II. CVE-2021-32782の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
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公開POCは見つかりませんでした。
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- https://hackerone.com/reports/1217606x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-32782
Same Patch Batch · nextcloud · 2021-09-07 · 9 CVEs total
| CVE-2021-32802 | 9.3 CRITICAL | Preview generation used third-party library not suited for user-generated content in Nextc |
| CVE-2021-32800 | 8.1 HIGH | Bypass of Two Factor Authentication in Nextcloud server |
| CVE-2021-37628 | 7.5 HIGH | File Drop can be bypassed using Richdocuments app in nextcloud |
| CVE-2021-37630 | 6.5 MEDIUM | Secret Circle can be joined without approval in Nextcloud Circles |
| CVE-2021-37631 | 6.5 MEDIUM | Circle can be accessed by non-Circle members in Nextcloud Deck |
| CVE-2021-32801 | 5.5 MEDIUM | Exceptions may have logged Encryption-at-Rest key content in Nextcloud server |
| CVE-2021-32766 | 5.3 MEDIUM | Nextcloud Text app can disclose existence of folders in "File Drop" link share |
| CVE-2021-37629 | 5.3 MEDIUM | Lack of ratelimit on Richdocuments OCS endpoint in nextcloud |
IV. 関連脆弱性
同じ製品: security-advisories
- CVE-2026-28272
Kiteworks Email Protection Gateway has a Cross-site Scriptin - CVE-2026-28271
Kiteworks Core is vulnerable to Server-Side Request Forgery - CVE-2026-28270
Kiteworks Core has an Unrestricted Upload of File with Dange - CVE-2026-28269
Kiteworks Core has an OS Command Injection - CVE-2025-66558
Nextcloud Twofactor WebAuthn app was updated based on public
同じベンダー: nextcloud
- CVE-2025-66558
Nextcloud Twofactor WebAuthn app was updated based on public - CVE-2025-66556
Nextcloud talk allows participants to blindly delete poll dr - CVE-2025-66554
Nextcloud Contacts vulnerable to Stored XSS in contacts app - CVE-2025-66549
Nextcloud Desktop discloses information when attempting to l - CVE-2025-66545
Nextcloud Groupfolders users with read-only permissions for
同じ弱点: CWE-79
- CVE-2026-8262
Devs Palace ERP Online chart-save cross site scripting - CVE-2026-8256
Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. CVE-2021-32782へのコメント
まだコメントはありません