What’s Vulnerable › Vulnerabilities

CVE-2023-2848

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-14 · updated 2026-06-17
• Weakness: CWE-1385

Description

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

Affected products

• Movim: before 0.22 — fixed in 0.22

How to fix

Upgrade to a fixed version: Movim 0.22. Check the vendor advisory for mitigations.

References

• https://github.com/movim/movim/commit/49e2012aecdf918bb1d16f278fa9ff42fad29a9d
• https://github.com/movim/movim/commit/96372082acd3e5d778a2522a60a1805bf2af31f6
• https://mov.im/node/pubsub.movim.eu/Movim/a2d05925-0427-4f3f-b777-d20571ddddff
• https://github.com/movim/movim/commit/49e2012aecdf918bb1d16f278fa9ff42fad29a9d
• https://github.com/movim/movim/commit/96372082acd3e5d778a2522a60a1805bf2af31f6
• https://mov.im/node/pubsub.movim.eu/Movim/a2d05925-0427-4f3f-b777-d20571ddddff

Get alerted when CVE-2023-2848 or the next vulnerability affects your stack