CVE-2025-52559— Zulip XSS in digest preview URL
Quick assessment
Affected
zulip zulip
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Zulip server是美国Zulip公司的一款开源的团队聊天应用程序。 Zulip server 2.0.0-rc1至10.4之前版本存在跨站脚本漏洞，该漏洞源于/digest/ URL存在跨站脚本漏洞。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-52559
Vulnerability Information
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Vulnerability Title
Zulip XSS in digest preview URL
Source: CVE Program / CVE List V5
Vulnerability Description
Zulip is an open-source team chat application. From versions 2.0.0-rc1 to before 10.4 in Zulip Server, the /digest/ URL of a server shows a preview of what the email weekly digest would contain. This URL, though not the digest itself, contains a cross-site scripting (XSS) vulnerability in both topic names and channel names. This issue has been fixed in Zulip Server 10.4. A workaround for this issue involves denying access to /digest/.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Zulip server 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zulip server是美国Zulip公司的一款开源的团队聊天应用程序。 Zulip server 2.0.0-rc1至10.4之前版本存在跨站脚本漏洞，该漏洞源于/digest/ URL存在跨站脚本漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-52559
| # | POC Description | Source Link | Shenlong Link |
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IV. Related Vulnerabilities
Same product: zulip
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CVE-2026-40300
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CVE-2026-26058
Zulip: Path Traversal in Import -
CVE-2026-25742
Zulip: Anonymous File Access After Disabling Spectator Acces -
CVE-2026-25741
Zulip Vulnerable to Modification of Payment Method (Stripe D -
CVE-2026-24050
Zulip affected by Stored XSS in user profile modal
Same vendor: zulip
-
CVE-2026-40300
Zulip: Message edit history visible in "moves only" policy t -
CVE-2026-26058
Zulip: Path Traversal in Import -
CVE-2026-25742
Zulip: Anonymous File Access After Disabling Spectator Acces -
CVE-2026-25741
Zulip Vulnerable to Modification of Payment Method (Stripe D -
CVE-2026-24050
Zulip affected by Stored XSS in user profile modal
Same weakness: CWE-79
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CVE-2026-105086
WWBN AVideo 12.4 through 29.2.0 Stored XSS via Double-Encode -
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YesWiki before 4.6.7 Stored XSS via Bazar valeur Action -
CVE-2026-105089
WWBN AVideo through 29.2.0 Stored XSS via trailer1 in YouPHP -
CVE-2026-103344
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CVE-2026-103062
WordPress TranslatePress plugin <= 3.3.6 - Cross Site Script
V. Comments for CVE-2025-52559
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