MEDIUMCVSS v3.1 4.3Vulnerability

CVE-2026-127145

SOGo before 5.12.13 contains a server-side request forgery vulnerability that allows authenticated users to make the server connect to arbitrary internal host:port destinations by supplying a user-controlled URL to the Calendar/addWebCalendar endpoint. Attackers can trigger a reload of the subscribed web calendar via the reload endpoint and distinguish response outcomes such as connection failures, timeouts, authentication prompts, or invalid content to probe the internal network from the server's position.

Properties

Severity
MEDIUM
Nvd fetched at
2026-11-14T00:40:25.638091+00:00
Epss score
0.0029
Cvss severity
MEDIUM
Cvss score
4.3
Retrieved at
2026-11-14T00:51:03+00:00
Last source
FIRST EPSS
Score
4.3
Cvss version
3.1
Cve id
CVE-2026-127145
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
First seen by Signal
2026-11-12T19:59:23+00:00
Name
CVE-2026-127145
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Published at
2026-11-12T16:19:08.620
Last modified
2026-11-13T02:18:53.920
Epss percentile
0.21848

Related Entities (1)

HAS_WEAKNESS (1)

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CVE-2026-127145 (CVSS v3.1 4.3) — Ninja Signal Threat Intelligence | Ninja Signal