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CVE-2018-5702

Transmission through 2.92 relies on X-Transmission-Session-Id (which is not a forbidden header...

8.8 HighPublic exploitFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

11.9%Up 3.2 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

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.

Record
CVE-2018-5702
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2018-5702
Updated
2026-11-02
EUVDEUVD-2018-17471 No score

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.

Record
EUVD-2018-17471
Updated
2026-11-03
GitHub AdvisoriesGHSA-6q4w-fhcp-mhw6 8.8

Transmission through 2.92 relies on X-Transmission-Session-Id (which is not a forbidden header...

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.

Record
GHSA-6q4w-fhcp-mhw6
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV 8.8

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.

Record
CVE-2018-5702
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-5702 8.8

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.

Record
DEBIAN-CVE-2018-5702
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVUBUNTU-CVE-2018-5702 8.8

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.

Record
UBUNTU-CVE-2018-5702
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2018-0230 No score

Updated transmission packages fix a security vulnerability

Updated transmission packages fix security vulnerability:

Tavis Ormandy discovered a vulnerability in the Transmission BitTorrent client; insecure RPC handling between the Transmission daemon and the client interface(s) may result in the execution of arbitrary code if a user visits a malicious website while Transmission is running (CVE-2018-5702).

Record
MGASA-2018-0230
Updated
2026-11-02
OSVopenSUSE-SU-2024:11474-1 No score

transmission-3.00-2.8 on GA media

These are all security issues fixed in the transmission-3.00-2.8 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11474-1
Updated
2026-11-02
OSVUSN-3533-1 No score

transmission vulnerability

It was discovered that Transmission incorrectly handled certain POST requests to the RPC server and allowed DNS rebinding attack. An attacker could possibly use this issue to execute arbitrary code.

Record
USN-3533-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
transmission
Debian:12
 before 2.92-3
2.92-3
transmission
Debian:13
 before 2.92-3
2.92-3
transmission
Debian:14
 before 2.92-3
2.92-3
transmission
Debian:7
 before 2.52-3+nmu3, plus listed versions
2.52-3+nmu12.52-3+nmu2
2.52-3+nmu3
transmission
Debian:8
 before 2.84-0.2+deb8u1, plus listed versions
2.84-0.2
2.84-0.2+deb8u1
transmission
Debian:9
 before 2.92-2+deb9u1, plus listed versions
2.92-2
2.92-2+deb9u1
transmission
Mageia:6
 before 2.92-3.1.mga6
2.92-3.1.mga6
transmission
Ubuntu:14.04:LTS
 before 2.82-1.1ubuntu3.2, plus listed versions
2.82-0ubuntu12.82-1ubuntu12.82-1.1ubuntu12.82-1.1ubuntu32.82-1.1ubuntu3.1
2.82-1.1ubuntu3.2
transmission
Ubuntu:16.04:LTS
 before 2.84-3ubuntu3.1, plus listed versions
2.84-1ubuntu12.84-22.84-32.84-3ubuntu12.84-3ubuntu22.84-3ubuntu3
2.84-3ubuntu3.1
transmission
openSUSE:Tumbleweed
From an advisory covering 2 CVEs
 before 3.00-2.8
3.00-2.8

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBTransmission - RPC DNS Rebinding2018-01-11

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-5702 is a high vulnerability (CVSS 8.8) in Transmissionbt Transmission, published January 14, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 11.9%, the 96th percentile. Fixed in transmission 2.92-3.

References

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