CVE-2018-8831

Exp

A Persistent XSS vulnerability exists in Kodi (formerly XBMC) through 17.6 that allows the execution of arbitrary HTML/script code in the context of the victim user's browser via a playlist.

Published: 2018-04-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-8831 is rated High Exploit Risk (67.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 10.94%, 94th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). 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-2018-8831

EDB-ID Source Kind Published Link
44487 exploit_db edb 2018-04-18 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-8831

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 2026-05-28 22.90% 10.94% -11.96%
2 2026-02-28 14.16% 22.90% +8.74%
3 2026-01-01 — 14.16% —

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-8831

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N 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:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N 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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2018-8831

OS Trackers for CVE-2018-8831

vendor priority summary link
alpine medium CVE-2018-8831: 1 source package rows (kodi); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2018-8831
debian unimportant CVE-2018-8831 unimportant priority: Debian including 1 source packages (kodi), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-8831
ubuntu medium CVE-2018-8831 medium priority: Ubuntu including 2 source packages (kodi, xbmc), 40 status rows across 20 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 20, ignored 15, needs-triage 5. https://ubuntu.com/security/CVE-2018-8831

Affected software / configurations for CVE-2018-8831

Vendor Product Version Raw CPE
kodi kodi <= 17.6 cpe:2.3:a:kodi:kodi:*:*:*:*:*:*:*:*

References for CVE-2018-8831

URL Tags
http://seclists.org/fulldisclosure/2018/Apr/36 Exploit Mailing List Third Party Advisory
https://trac.kodi.tv/ticket/17814 Vendor Advisory
https://www.exploit-db.com/exploits/44487/ Exploit Third Party Advisory VDB Entry
cvelogic Threat Intelligence