Traccar Missing Origin Validation in WebSockets

published 2026-02-23 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-207618

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits: 1; Exploit-DB

Versions of the Traccar open-source GPS tracking system up to and including 6.11.1 contain a Cross-Site WebSocket Hijacking (CSWSH) vulnerability in the `/api/socket` endpoint. The application fails to validate the `Origin` header during the WebSocket handshake. This allows a remote attacker to bypass the Same Origin Policy (SOP) and establish a full-duplex WebSocket connection using a legitimate user's credentials (JSESSIONID). As of time of publication, it is unclear whether a fix is available.

Timeline

2026-02-23 Published
2026-05-04 First public exploit (EDB-52545)

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 8 mo ago (2026-02-25)

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-52545 Traccar GPS Tracking System 6.11.1 - Cross-Site WebSocket Hijacking (CSWSH) webapps, 2026-05-04
github.com https://github.com/traccar/traccar/security/advisories/GHSA-69x6-wcx2-vghp referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

traccar traccar

Classification

Weakness

CWE-1385 Missing Origin Validation in WebSockets

References

github.com /traccar/traccar/security/advisories/GHSA-69x6-wcx2-vghp
exploit, mitigation, vendor-advisory

Sources

CVE List CVE-2025-68930
NVD CVE-2025-68930

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary