CVE-2019-13075

Exp

Tor Browser through 8.5.3 has an information exposure vulnerability. It allows remote attackers to detect the browser's language via vectors involving an IFRAME element, because text in that language is included in the title attribute of a LINK element for a non-HTML page. This is related to a behavior of Firefox before 68.

Published: 2019-06-30 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-13075 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.15%). 1 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-2019-13075

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-13075

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 2026-03-04 0.17% 0.15% -0.03%
2 2026-03-01 0.15% 0.17% +0.03%
3 2026-02-04 — 0.15% —

Full EPSS history (38 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-13075

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-13075

OS Trackers for CVE-2019-13075

vendor priority summary link
debian unimportant CVE-2019-13075 unimportant priority: Debian including 2 source packages (firefox, firefox-esr), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2019-13075
ubuntu negligible CVE-2019-13075 negligible priority: Ubuntu including 6 source packages (firefox, firefox-esr, mozjs38, mozjs52, mozjs60, thunderbird), 42 status rows across 7 suites (bionic, cosmic, disco, eoan, trusty, upstream, xenial): DNE 18, not-affected 10, ignored 8, needs-triage 5, released 1. https://ubuntu.com/security/CVE-2019-13075

Affected software / configurations for CVE-2019-13075

Vendor Product Version Raw CPE
torproject tor_browser <= 8.5.3 cpe:2.3:a:torproject:tor_browser:*:*:*:*:*:*:*:*

References for CVE-2019-13075

URL Tags
https://hackerone.com/reports/588239 Exploit Issue Tracking Third Party Advisory
https://trac.torproject.org/projects/tor/ticket/30657 Vendor Advisory
cvelogic Threat Intelligence