CVE-2025-52559CWE-79

Zulip XSS in digest preview URL

Medium · published July 2, 2025

CVSS v3.1
6.8
EPSS
0%
Percentile
19.7
In the wild
Unconfirmed
What it is

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/.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00282 · 19.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-07-02T19:31Z
EPSS history
Timeline
  • 02 JUL 19:31Z
    Zulip XSS in digest preview URL
    cvelistv5