CVE-2026-27694

Description

Traccar is an open source GPS tracking system. In org.traccar:traccar versions starting at 6.11.1 before 6.13.0, the email notification templates insert user-controlled device, geofence, and driver names into HTML email output without proper escaping. An attacker with low privileges can store crafted HTML in these fields, which is then rendered in notification emails sent to other users with access to the affected devices. This can lead to phishing or spoofed email content. This issue is fixed in version 6.13.0.

CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploit Prediction

0.0004

Probability of exploitation

0.11%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
traccar	traccar	6.11.1 — 6.13.0

References

Advisories & Patches

https://github.com/traccar/traccar/security/advisories/GHSA-6hfr-mj4m-hrvv https://github.com/traccar/traccar/security/advisories/GHSA-6hfr-mj4m-hrvv

Exploits

https://github.com/traccar/traccar/security/advisories/GHSA-6hfr-mj4m-hrvv https://github.com/traccar/traccar/security/advisories/GHSA-6hfr-mj4m-hrvv

Frequently Asked Questions

What is CVE-2026-27694? +

Traccar is an open source GPS tracking system. In org.traccar:traccar versions starting at 6.11.1 before 6.13.0, the email notification templates insert user-controlled device, geofence, and driver names into HTML email output without proper escaping. An attacker with low privileges can store crafted HTML in these fields, which is then rendered in notification emails sent to other users with access to the affected devices. This can lead to phishing or spoofed email content. This issue is fixed in version 6.13.0. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2026-27694? +

CVE-2026-27694 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0004, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-27694? +

CVE-2026-27694 affects products from traccar, specifically: traccar. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-27694? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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