Movim prior to version 0.22 is affected by a Cross-Site WebSocket Hijacking vulnerability.

published 2023-09-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-34299

cvss: 8.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits: 0; none known

Movim prior to version 0.22 is affected by a Cross-Site WebSocket Hijacking vulnerability. This was the result of a missing header validation.

Patch / fix

fixed in 1 links 2

Movim Movim 0.22

github.com/movim/movim@9637208 commit
github.com/movim/movim@49e2012 commit

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-09-25)

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Movim Movim

Classification

Weakness

CWE-1385 Missing Origin Validation in WebSockets
CWE-346 Origin Validation Error

References

Sources

CVE List CVE-2023-2848
NVD CVE-2023-2848

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary