CVE-2018-5702

Exp

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.

Published: 2018-01-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2018-5702

EPSS CVSS Exploit-DB Affected OS Tracker

Conclusion & alert: CVE-2018-5702 is rated High Exploit Risk (88.3/100): CVSS High severity, with high exploitation likelihood (EPSS 26.35%, 96th percentile). Core evidence: 4 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +4.39% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-5702

EDB-ID	Source	Kind	Published	Link
43665	exploit_db	edb	2018-01-11	Exploit-DB ↗
—	nvd_ref	exploit_tag		Exploit-DB ↗
—	nvd_ref	exploit_tag		Exploit-DB ↗
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-5702

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-05-12	21.96%	26.35%	+4.39%
2	2026-04-07	27.22%	21.96%	-5.27%
3	2026-03-04	—	27.22%	—

Full EPSS history (45 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-5702

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.0	HIGH	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	5.9	[email protected]
6.8	2.0	MEDIUM	`AV:N/AC:M/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:M) Exploitation needs some favorable conditions, but not exceptional ones. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	8.6	6.4	[email protected]

Weakness enumeration for CVE-2018-5702

OS Trackers for CVE-2018-5702

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2018-5702 not yet assigned priority: Debian including 1 source packages (transmission), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2018-5702
`gentoo`	normal	CVE-2018-5702: 1 GLSA(s) (201806-07), 1 atom(s) (net-p2p/transmission); latest impact normal.	https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-5702
`ubuntu`	medium	CVE-2018-5702 medium priority: Ubuntu including 1 source packages (transmission), 4 status rows across 4 suites (artful, trusty, upstream, xenial): released 3, needs-triage 1.	https://ubuntu.com/security/CVE-2018-5702

Affected software / configurations for CVE-2018-5702

Vendor	Product	Version	Raw CPE
transmissionbt	transmission	<= 2.92	cpe:2.3:a:transmissionbt:transmission::::::::
debian	debian_linux	7.0	cpe:2.3:o:debian:debian_linux:7.0:::::::*
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*

References for CVE-2018-5702

URL	Tags
https://bugs.chromium.org/p/project-zero/issues/detail?id=1447	Exploit Issue Tracking Technical Description Third Party Advisory
https://github.com/transmission/transmission/pull/468	Exploit Technical Description Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/01/msg00020.html	Mailing List Third 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/	Exploit Third Party Advisory VDB Entry

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