Cross-site Scripting in MobileDetect

Description

A vulnerability, which was classified as problematic, has been found in MobileDetect 2.8.31. This issue affects the function initLayoutType of the file examples/session_example.php of the component Example. The manipulation of the argument $_SERVER['PHP_SELF'] leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.8.32 is able to address this issue. The name of the patch is 31818a441b095bdc4838602dbb17b8377d1e5cce. It is recommended to upgrade the affected component. The identifier VDB-220061 was assigned to this vulnerability.

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
Source code
Browse source ↗
Published (advisory)
2023-02-04 09:30:21 UTC
Updated
2025-04-16 16:13:42 UTC
GitHub reviewed
2023-02-14 21:34:31 UTC
NVD published
2023-02-04

EPSS Score

Score Percentile
3.45% 87.50%

CVSS Scores

Base score Version Severity Vector
6.1 3.1
CVSS:3.1/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.

Identifiers

CWEs

CWE id Name
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
composer mobiledetect/mobiledetectlib < 2.8.32 2.8.32

References

cvelogic Threat Intelligence