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Vulnerability record · CVE-2018-5702 · published 15 January 2018

CVE-2018-5702: Transmissionbt transmission vulnerability

Transmissionbt · Transmission

Transmission through 2.92 relies on X-Transmission-Session-Id (which is not a forbidden header for Fetch) for access control, which allows remote attackers to execute arbitrary RPC commands, and consequently write to arbitrary files, via POST requests to /transmission/rpc in conjunction with a DNS rebinding attack.

8.8 CVSS 3.0 High EPSS 12% · top 4.0%
8.8CVSS 3.0 base score, v2 6.8
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
14References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

Transmission through 2.92 relies on X-Transmission-Session-Id (which is not a forbidden header for Fetch) for access control, which allows remote attackers to execute arbitrary RPC commands, and consequently write to arbitrary files, via POST requests to /transmission/rpc in conjunction with a DNS rebinding attack.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugs.chromium.org/p/project-zero/issues/detail?id=1447 ExploitIssue TrackingTechnical DescriptionThird Party Advisory
https://github.com/transmission/transmission/pull/468 ExploitTechnical DescriptionThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/01/msg00020.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201806-07 Third Party Advisory
https://twitter.com/taviso/status/951526615145566208 Third Party Advisory
https://www.debian.org/security/2018/dsa-4087 Third Party Advisory
https://www.exploit-db.com/exploits/43665/ ExploitThird Party AdvisoryVDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=1447 ExploitIssue TrackingTechnical DescriptionThird Party Advisory
https://github.com/transmission/transmission/pull/468 ExploitTechnical DescriptionThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/01/msg00020.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201806-07 Third Party Advisory
https://twitter.com/taviso/status/951526615145566208 Third Party Advisory
https://www.debian.org/security/2018/dsa-4087 Third Party Advisory
https://www.exploit-db.com/exploits/43665/ ExploitThird Party AdvisoryVDB Entry

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Source: NIST National Vulnerability Database (record CVE-2018-5702), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.